[Skip to main content](#vessel-content) # Bug report: 100% discount causes a fatal error and makes the website unusable ## - **[jcamus](/forum/user/33993-jcamus "View jcamus's Profile")** - [![jcamus's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/33993-jcamus "View jcamus's Profile") Topic Author - [ Offline](/forum/user/33993-jcamus) Less More - Posts: 36 - Thank you received: 2 - - 1 year 2 months ago [\#368084](#368084) by [jcamus](/forum/user/33993-jcamus "View jcamus's Profile") *[Bug report: 100% discount causes a fatal error and makes the website unusable](/forum/46-discount-coupon/909618-bug-report-100-discount-causes-a-fatal-error-and-makes-the-website-unusable#368084 "-- HikaShop version -- : 6.0.0 -- Joomla version -- : 4.4.3 -- PHP version -- : 8.2 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Attempt to assign property "tax_amount" on null Hi, we have the following discount code set up in HikaShop: prnt.sc/MqVO4V_4aAYr In combination with particular products in the cart, it results in the following error: Attempt to assign property "tax_amount" on null Screenshot: prnt.sc/yvZW_qPkwnz_ The user can no longer use the website at all as every page visit results in the same error. Stack trace: prnt.sc/vOAmxB1yOVZ9 Our developer investigated this and determined it is indeed a bug. Here is what he said: For a quick fix, I updated the file: \\administrator\components\com_hikashop\classes\discount.php and around line 703 added: Can you include an official fix in the next version? Thank you")* was created by *[jcamus](/forum/user/33993-jcamus "View jcamus's Profile")* -- HikaShop version -- : 6.0.0 -- Joomla version -- : 4.4.3 -- PHP version -- : 8.2 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Attempt to assign property "tax_amount" on null Hi, we have the following discount code set up in HikaShop: [ prnt.sc/MqVO4V\_4aAYr](https://prnt.sc/MqVO4V_4aAYr) In combination with particular products in the cart, it results in the following error: **Attempt to assign property "tax\_amount" on null** Screenshot: [ prnt.sc/yvZW\_qPkwnz\_](https://prnt.sc/yvZW_qPkwnz_) The user can no longer use the website at all as every page visit results in the same error. Stack trace: [ prnt.sc/vOAmxB1yOVZ9](https://prnt.sc/vOAmxB1yOVZ9) Our developer investigated this and determined it is indeed a bug. Here is what he said: For a quick fix, I updated the file: \\administrator\components\com_hikashop\classes\discount.php and around line 703 added: Code: if ( ! isset( $cart->coupon->total->prices[0]->taxes ) && isset ( $cart->coupon->total->prices[0]->taxes_without_discount ) ) $cart->coupon->total->prices[0]->taxes = $cart->coupon->total->prices[0]->taxes_without_discount; # seyi_code Can you include an official fix in the next version? Thank you Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzQ2LWRpc2NvdW50LWNvdXBvbi85MDk2MTgtYnVnLXJlcG9ydC0xMDAtZGlzY291bnQtY2F1c2VzLWEtZmF0YWwtZXJyb3ItYW5kLW1ha2VzLXRoZS13ZWJzaXRlLXVudXNhYmxlP3RtcGw9bWFya2Rvd24=) or [Create an account](/register) 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?1793428657)](/forum/user/63-nicolas "View nicolas's Profile") - [ Away](/forum/user/63-nicolas) Less More - Posts: 86323 - Thank you received: 14283 - - 1 year 2 months ago [\#368089](#368089) by [nicolas](/forum/user/63-nicolas "View nicolas's Profile") Replied by *[nicolas](/forum/user/63-nicolas "View nicolas's Profile")* on topic *[Bug report: 100% discount causes a fatal error and makes the website unusable](/forum/46-discount-coupon/909618-bug-report-100-discount-causes-a-fatal-error-and-makes-the-website-unusable#368089 "-- HikaShop version -- : 6.0.0 -- Joomla version -- : 4.4.3 -- PHP version -- : 8.2 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Attempt to assign property "tax_amount" on null Hi, we have the following discount code set up in HikaShop: prnt.sc/MqVO4V_4aAYr In combination with particular products in the cart, it results in the following error: Attempt to assign property "tax_amount" on null Screenshot: prnt.sc/yvZW_qPkwnz_ The user can no longer use the website at all as every page visit results in the same error. Stack trace: prnt.sc/vOAmxB1yOVZ9 Our developer investigated this and determined it is indeed a bug. Here is what he said: For a quick fix, I updated the file: \\administrator\components\com_hikashop\classes\discount.php and around line 703 added: Can you include an official fix in the next version? Thank you")* Hi, Thank you for your feedback. I've made a patch for it. Download the install package of the 6.0.0 and install it on your website and it will add the patch. Otherwise, it will also be in the next version. The following user(s) said Thank You: [jcamus](/forum/user/33993-jcamus "View jcamus's Profile") Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzQ2LWRpc2NvdW50LWNvdXBvbi85MDk2MTgtYnVnLXJlcG9ydC0xMDAtZGlzY291bnQtY2F1c2VzLWEtZmF0YWwtZXJyb3ItYW5kLW1ha2VzLXRoZS13ZWJzaXRlLXVudXNhYmxlP3RtcGw9bWFya2Rvd24=) or [Create an account](/register) to join the conversation. 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