[Skip to main content](#vessel-content) # Error Message in the Configuration ## - **[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")** - [![sokartch's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar4482.jpg)](/forum/user/4482-sokartch "View sokartch's Profile") Topic Author - [ Offline](/forum/user/4482-sokartch) Less More - Posts: 73 - Thank you received: 0 - - 9 years 3 months ago [\#274864](#274864) by [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#274864 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* was created by *[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")* -- url of the page with the problem -- : [ www.sokart.ch](https://www.sokart.ch) -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")** - [![sokartch's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar4482.jpg)](/forum/user/4482-sokartch "View sokartch's Profile") Topic Author - [ Offline](/forum/user/4482-sokartch) Less More - Posts: 73 - Thank you received: 0 - - 9 years 3 months ago [\#274870](#274870) by [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") Replied by *[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#274870 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* In the meantime I updated the PHP to V7.x -- PHP version -- : 5.6 Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Jerome](/forum/user/80-jerome "View Jerome's Profile")** - [![Jerome's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar80.png)](/forum/user/80-jerome "View Jerome's Profile") - [ Offline](/forum/user/80-jerome) - HikaShop core developer Less More - Posts: 26394 - Thank you received: 4078 - - [](http://obsi.dev) - 9 years 3 months ago [\#274873](#274873) by [Jerome](/forum/user/80-jerome "View Jerome's Profile") Replied by *[Jerome](/forum/user/80-jerome "View Jerome's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#274873 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hello, Are you really sure that your root category is right has it should be ? Code: SELECT category_id FROM hikashop_category WHERE category_type = 'root' AND category_parent_id = 0 Regards, --- Jerome - Obsidev.com HikaMarket & HikaSerial developer / HikaShop core dev team. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")** - [![sokartch's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar4482.jpg)](/forum/user/4482-sokartch "View sokartch's Profile") Topic Author - [ Offline](/forum/user/4482-sokartch) Less More - Posts: 73 - Thank you received: 0 - - 9 years 3 months ago [\#274926](#274926) by [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") Replied by *[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#274926 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hello This response (table prefix added) was empty and there isn't "category_type = 'root'" and "category_parent_id = 0"! How may I fix it? Regards PR Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Jerome](/forum/user/80-jerome "View Jerome's Profile")** - [![Jerome's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar80.png)](/forum/user/80-jerome "View Jerome's Profile") - [ Offline](/forum/user/80-jerome) - HikaShop core developer Less More - Posts: 26394 - Thank you received: 4078 - - [](http://obsi.dev) - 9 years 3 months ago [\#274928](#274928) by [Jerome](/forum/user/80-jerome "View Jerome's Profile") Replied by *[Jerome](/forum/user/80-jerome "View Jerome's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#274928 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hello, Just quoting the message you got: > When start HikaShop > System > Configuration then error. > \--- > Error > It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. **Please click on the "check database" button of the toolbar which will restore it.** > \--- Regards, --- Jerome - Obsidev.com HikaMarket & HikaSerial developer / HikaShop core dev team. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")** - [![sokartch's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar4482.jpg)](/forum/user/4482-sokartch "View sokartch's Profile") Topic Author - [ Offline](/forum/user/4482-sokartch) Less More - Posts: 73 - Thank you received: 0 - - 9 years 3 months ago [\#274972](#274972) by [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") Replied by *[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#274972 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hello I already (days ago) clicked "Check database", all tables are "OK" but the message still appears. That is the cause I generated the ticket? Regards PR Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Jerome](/forum/user/80-jerome "View Jerome's Profile")** - [![Jerome's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar80.png)](/forum/user/80-jerome "View Jerome's Profile") - [ Offline](/forum/user/80-jerome) - HikaShop core developer Less More - Posts: 26394 - Thank you received: 4078 - - [](http://obsi.dev) - 9 years 3 months ago [\#274985](#274985) by [Jerome](/forum/user/80-jerome "View Jerome's Profile") Replied by *[Jerome](/forum/user/80-jerome "View Jerome's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#274985 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hello, You should have precise it in your first message. So there is something missing in the check database for the restore of the root category in your specific case. Please process that SQL query in your PHPMyAdmin (just replace the " #_ " with your database prefix). Code: INSERT IGNORE INTO `#__hikashop_category` (`category_id`, `category_parent_id`, `category_type`, `category_name`, `category_description`, `category_published`, `category_ordering`, `category_left`, `category_right`, `category_depth`, `category_namekey`) VALUES (1, 0, 'root', 'ROOT', '', 0, 0, 1, 22, 0, 'root'),(2, 1, 'product', 'product category', '', 1, 1, 2, 3, 1, 'product'),(3, 1, 'tax', 'taxation category', '', 1, 2, 4, 7, 1, 'tax'); Afterwards you might need to perform a "rebuild tree" via the HikaShop category listing toolbar. But if you have purge your hikashop_category table ; I'm afraid that you might have other side effects. Regards, --- Jerome - Obsidev.com HikaMarket & HikaSerial developer / HikaShop core dev team. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")** - [![sokartch's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar4482.jpg)](/forum/user/4482-sokartch "View sokartch's Profile") Topic Author - [ Offline](/forum/user/4482-sokartch) Less More - Posts: 73 - Thank you received: 0 - - 9 years 2 months ago [\#275403](#275403) by [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") Replied by *[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#275403 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hello On "Afterwards you might need to perform a "rebuild tree" via the HikaShop category listing toolbar." I got following error message (before and after execution of recommended SQL script): 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LIMIT 1' at line 1 And Error --- It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- still appears in Configuration. Regards, PR Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Jerome](/forum/user/80-jerome "View Jerome's Profile")** - [![Jerome's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar80.png)](/forum/user/80-jerome "View Jerome's Profile") - [ Offline](/forum/user/80-jerome) - HikaShop core developer Less More - Posts: 26394 - Thank you received: 4078 - - [](http://obsi.dev) - 9 years 2 months ago [\#275417](#275417) by [Jerome](/forum/user/80-jerome "View Jerome's Profile") Replied by *[Jerome](/forum/user/80-jerome "View Jerome's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#275417 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hello, Please provide concret details about the content in your "hikashop_category" table. Regards, --- Jerome - Obsidev.com HikaMarket & HikaSerial developer / HikaShop core dev team. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")** - [![sokartch's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar4482.jpg)](/forum/user/4482-sokartch "View sokartch's Profile") Topic Author - [ Offline](/forum/user/4482-sokartch) Less More - Posts: 73 - Thank you received: 0 - - 9 years 2 months ago [\#275463](#275463) by [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") Replied by *[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#275463 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hi It's attached... Regards, PR Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[nicolas](/forum/user/63-nicolas "View nicolas's Profile")** - [![nicolas's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar63.png)](/forum/user/63-nicolas "View nicolas's Profile") - [ Away](/forum/user/63-nicolas) Less More - Posts: 86315 - Thank you received: 14274 - - 9 years 2 months ago [\#275466](#275466) by [nicolas](/forum/user/63-nicolas "View nicolas's Profile") Replied by *[nicolas](/forum/user/63-nicolas "View nicolas's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#275466 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Hi, The problem is indeed the ROOT category there. It's category_parent_id is linked to a category with the id 133 which doesn't exist instead of being 0 and its category_type should be "root" instead of "product". Please change these for that entry, then use the "rebuild" button of the categories listing and it should all work fine again. The following user(s) said Thank You: [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")** - [![sokartch's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar4482.jpg)](/forum/user/4482-sokartch "View sokartch's Profile") Topic Author - [ Offline](/forum/user/4482-sokartch) Less More - Posts: 73 - Thank you received: 0 - - 9 years 2 months ago [\#275519](#275519) by [sokartch](/forum/user/4482-sokartch "View sokartch's Profile") Replied by *[sokartch](/forum/user/4482-sokartch "View sokartch's Profile")* on topic *[Error Message in the Configuration](/forum/25-install-update/891313-error-message-in-the-configuration#275519 "-- url of the page with the problem -- : www.sokart.ch -- HikaShop version -- : HikaShop Business 3.1.1 [1707191036] -- Joomla version -- : 3.7.4 -- PHP version -- : 5.6 -- Browser(s) name and version -- : Firefox 54.0.1 (32-Bit) -- Error-message(debug-mod must be tuned on) -- : Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. Hello After update from HikaShop Business 2.6.4 [1610211750] When start HikaShop > System > Configuration then error. --- Error It appears the root category has been deleted. That category shouldn't be removed as it is crucial to the proper functioning of the category system. Please click on the "check datbaase" button of the toolbar which will restore it. --- "Root" category exists! Greetings Petar Ristanovic")* Ok, it seems to work. Thank you! Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI1LWluc3RhbGwtdXBkYXRlLzg5MTMxMy1lcnJvci1tZXNzYWdlLWluLXRoZS1jb25maWd1cmF0aW9uP3RtcGw9bWFya2Rvd24=) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. 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