Instal

-- HikaShop version -- : HikaShop Business 6.1.1 [2511142228]
-- Joomla version -- : 5.4.0
-- PHP version -- : 8.4.13
-- Error-message(debug-mod must be tuned on) -- : No error showing

Seeking to update to the following file downloaded .... com_hikashop_business_v6.1.1_2025-11-16_06-23-15

Cannot complete update. Install update commences and when completed the page with the additional plugins to download I get the following

Be careful. Something doesn’t look right.

Firefox didn’t load this page because it looks like the security configuration doesn’t match the previous page.

Sometimes websites set up protections for themselves and people like you from unwanted interactions with other sites.
Learn more about Cross Origin Embedder Policies (COEP)

I have made no changes to any plugin/config/htaccess/server settings since previous update to HikaShop Business 6.1.1 [2511142228] which went like clockwork as always

Updated another client site to check and that went as expected. Identical hosting and config settings

Thoughts?

-- edit ---
GRRR title is all wrong and refuses to be changed

And at the end of the update process, HikaShop displays an embedded thank you page which comes from our website.

I never get the above thank you page and the version installed remains the same as before ... highlighted when I commenced this thread.

I'll need to dig deeper and will come back either way.
Thanks for the mag link I missed that one

May help if I thought deeper.

We have our default install on domain.com which Hikashop updated as expected .... this issue is on domain.com/new
We are moving from J! 5.4 to 6.x and changing payment gateway providers as well as changing the theme/layout and the /new is where it's located for now.

I decided not to bother updating Hikashop for now as the rest of the process is going ok .... except

Just attempted to activate the installed new payment gateway plugin and get the following

An error has occurred.

0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isSite()

Call Stack
# Function Location
1 () JROOT/plugins/hikashoppayment/pin/pin.php:100
2 plgHikashoppaymentPin->__construct() JROOT/administrator/components/com_hikashop/helpers/helper.php:754
3 hikashop_import() JROOT/administrator/components/com_hikashop/views/plugins/view.html.php:221
4 PluginsViewPlugins->selectnew() JROOT/administrator/components/com_hikashop/views/plugins/view.html.php:22
5 PluginsViewPlugins->display() JROOT/libraries/src/MVC/Controller/BaseController.php:697
6 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/administrator/components/com_hikashop/helpers/helper.php:2636
7 hikashopController->display() JROOT/administrator/components/com_hikashop/controllers/plugins.php:154
8 PluginsController->add() JROOT/libraries/src/MVC/Controller/BaseController.php:730
9 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/administrator/components/com_hikashop/helpers/helper.php:2614
10 hikashopController->execute() JROOT/administrator/components/com_hikashop/hikashop.php:73
11 require_once() JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:71
12 Joomla\CMS\Dispatcher\LegacyComponentDispatcher::{closure:Joomla\CMS\Dispatcher\LegacyComponentDispatcher::dispatch():70}() JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:73
13 Joomla\CMS\Dispatcher\LegacyComponentDispatcher->dispatch() JROOT/libraries/src/Component/ComponentHelper.php:361
14 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:150
15 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:205
16 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:304
17 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/includes/app.php:58
18 require_once() JROOT/administrator/index.php:32

No other payment gateways are active.

Related or separate issue?
Thanks