Problem with calendar and event blocks

Hello everyone,

I have a problem with the calendar block and the event list block. When I drag these blocks into my container and want to include the created calendar there, there is no option to select the existing calendars (see screenshot).

2024-02-29_07-38

If I click on “Add” anyway, I get the following error message:

Undefined array key "caID"

Details
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/blocks/event_list/controller.php(322): Whoops\Exception\ErrorException->null	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/blocks/event_list/controller.php(322): Whoops\Run->handleError	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Entity/Block/BlockType/BlockType.php(675): Concrete\Block\EventList\Controller->save	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Page/Collection/Collection.php(1078): Concrete\Core\Entity\Block\BlockType\BlockType->add	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Page/Page.php(2787): Concrete\Core\Page\Collection\Collection->addBlock	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/controllers/dialog/page/add_block.php(107): Concrete\Core\Page\Page->addBlock	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Controller/AbstractController.php(318): Concrete\Controller\Dialog\Page\AddBlock->submit	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Controller/AbstractController.php(318): null->call_user_func_array	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Routing/ControllerRouteAction.php(64): Concrete\Core\Controller\AbstractController->runAction	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/RouteDispatcher.php(37): Concrete\Core\Routing\ControllerRouteAction->execute	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/DispatcherDelegate.php(39): Concrete\Core\Http\RouteDispatcher->dispatch	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/MiddlewareStack.php(86): Concrete\Core\Http\Middleware\DispatcherDelegate->next	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/DefaultDispatcher.php(127): Concrete\Core\Http\Middleware\MiddlewareStack->process	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/DefaultDispatcher.php(60): Concrete\Core\Http\DefaultDispatcher->handleDispatch	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/DispatcherDelegate.php(39): Concrete\Core\Http\DefaultDispatcher->dispatch	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/FrameOptionsMiddleware.php(39): Concrete\Core\Http\Middleware\DispatcherDelegate->next	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/MiddlewareDelegate.php(50): Concrete\Core\Http\Middleware\FrameOptionsMiddleware->process	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/StrictTransportSecurityMiddleware.php(36): Concrete\Core\Http\Middleware\MiddlewareDelegate->next	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/MiddlewareDelegate.php(50): Concrete\Core\Http\Middleware\StrictTransportSecurityMiddleware->process	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/ContentSecurityPolicyMiddleware.php(36): Concrete\Core\Http\Middleware\MiddlewareDelegate->next	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/MiddlewareDelegate.php(50): Concrete\Core\Http\Middleware\ContentSecurityPolicyMiddleware->process	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/CookieMiddleware.php(35): Concrete\Core\Http\Middleware\MiddlewareDelegate->next	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/MiddlewareDelegate.php(50): Concrete\Core\Http\Middleware\CookieMiddleware->process	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/ApplicationMiddleware.php(29): Concrete\Core\Http\Middleware\MiddlewareDelegate->next	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/MiddlewareDelegate.php(50): Concrete\Core\Http\Middleware\ApplicationMiddleware->process	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/Middleware/MiddlewareStack.php(86): Concrete\Core\Http\Middleware\MiddlewareDelegate->next	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Http/DefaultServer.php(85): Concrete\Core\Http\Middleware\MiddlewareStack->process	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Foundation/Runtime/Run/DefaultRunner.php(128): Concrete\Core\Http\DefaultServer->handleRequest	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/src/Foundation/Runtime/DefaultRuntime.php(102): Concrete\Core\Foundation\Runtime\Run\DefaultRunner->run	
/var/www/updates/concrete-cms-9.2.6-remote-updater/concrete/dispatcher.php(45): Concrete\Core\Foundation\Runtime\DefaultRuntime->run	
/var/www/concrete/bootstrap/configure.php(55): null->require	
/var/www/concrete/dispatcher.php(13): null->require	
/var/www/index.php(2): null->require

Interestingly, I can add the Calendar event block. There I can select the calendars (see other screenshot).

What is also exciting is that originally both blocks could be added! I had tried it once on a test page and then deleted it again.

Version of ConcreteCMS: 9.2.6.
Version of PHP: 8.2.

Do any of you have an idea how I can solve the problem?
Thanks and greetings
Trickler

Translated with DeepL.com (free version)

Hi Trickler - do you have any overrides in place by any chance?