Ok here is anyhow the trace log:
404 View not found [name, type, prefix]: category, html, site
404 Not Found : You do not have permissions to access this page.
You may not be able to visit this page because of:
an out-of-date bookmark/favourite
a search engine that has an out-of-date listing for this site
a mistyped address
you have no access to this page
The requested resource was not found.
An error has occurred while processing your request.
If difficulties persist, please contact the website administrator and report the error below.
2025-08-14T06:43:48+00:00 CRITICAL 213.67.111.244 error Uncaught Throwable of type Exception thrown with message "View not found [name, type, prefix]: category, html, site". Stack trace: #0 [ROOT]/libraries/kunena/src/Controller/KunenaController.php(386): Joomla\CMS\MVC\Controller\BaseController->getView()
#1 [ROOT]/libraries/kunena/src/Controller/KunenaController.php(323): Kunena\Forum\Libraries\Controller\KunenaController->display()
#2 [ROOT]/libraries/kunena/src/Controller/KunenaController.php(226): Kunena\Forum\Libraries\Controller\KunenaController->executeTask()
#3 [ROOT]/components/com_kunena/src/Dispatcher/Dispatcher.php(108): Kunena\Forum\Libraries\Controller\KunenaController->execute()
#4 [ROOT]/libraries/src/Component/ComponentHelper.php(361): Kunena\Forum\Site\Dispatcher\Dispatcher->dispatch()
#5 [ROOT]/libraries/src/Application/SiteApplication.php(217): Joomla\CMS\Component\ComponentHelper::renderComponent()
#6 [ROOT]/libraries/src/Application/SiteApplication.php(271): Joomla\CMS\Application\SiteApplication->dispatch()
#7 [ROOT]/libraries/src/Application/CMSApplication.php(304): Joomla\CMS\Application\SiteApplication->doExecute()
#8 [ROOT]/includes/app.php(58): Joomla\CMS\Application\CMSApplication->execute()
#9 [ROOT]/index.php(32): require_once('...')
#10 {main}
2025-08-14T06:44:09+00:00 CRITICAL 213.67.111.244 error Uncaught Throwable of type Joomla\CMS\Router\Exception\RouteNotFoundException thrown with message "Page not found". Stack trace: #0 [ROOT]/libraries/src/Application/SiteApplication.php(767): Joomla\CMS\Router\Router->parse()
#1 [ROOT]/libraries/src/Application/SiteApplication.php(243): Joomla\CMS\Application\SiteApplication->route()
#2 [ROOT]/libraries/src/Application/CMSApplication.php(304): Joomla\CMS\Application\SiteApplication->doExecute()
#3 [ROOT]/includes/app.php(58): Joomla\CMS\Application\CMSApplication->execute()
#4 [ROOT]/index.php(32): require_once('...')
#5 {main}