Error when trying to create a new order from the admin in J4

-- HikaShop version -- : 4.6.1
-- Joomla version -- : 4.1.5
-- PHP version -- : 7.4
-- Error-message(debug-mod must be tuned on) -- : An error has occurred.

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

Hi,

There is an error:
An error has occurred.

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


Call stack
# Function Location
1 () JROOT/plugins/hikashoppayment/bf_rbsglobalgateway/bf_rbsglobalgateway.php:62
2 plgHikashoppaymentbf_rbsglobalgateway->onBeforeOrderCreate() JROOT/libraries/src/Plugin/CMSPlugin.php:285
3 Joomla\CMS\Plugin\CMSPlugin->Joomla\CMS\Plugin\{closure}() JROOT/libraries/vendor/joomla/event/src/Dispatcher.php:486
4 Joomla\Event\Dispatcher->dispatch() JROOT/libraries/src/Application/EventAware.php:111
5 Joomla\CMS\Application\WebApplication->triggerEvent() JROOT/administrator/components/com_hikashop/classes/order.php:175
6 hikashopOrderClass->save() JROOT/administrator/components/com_hikashop/controllers/order.php:55
7 OrderController->neworder() JROOT/libraries/src/MVC/Controller/BaseController.php:735
8 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/administrator/components/com_hikashop/helpers/helper.php:2378
9 hikashopController->execute() JROOT/administrator/components/com_hikashop/hikashop.php:73
10 require_once() JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:69
11 Joomla\CMS\Dispatcher\LegacyComponentDispatcher::Joomla\CMS\Dispatcher\{closure}() JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:71
12 Joomla\CMS\Dispatcher\LegacyComponentDispatcher->dispatch() JROOT/libraries/src/Component/ComponentHelper.php:389
13 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:143
14 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:186
15 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:278
16 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/includes/app.php:63
17 require_once() JROOT/administrator/index.php:32

When trying to create a new order from the admin. Just press "New" and the error will show.

Thank you

I did try to disable it and I still get the same error - will this plugin not work in J4 then?

yeah that worked thank you