TypeError: Argument 2 passed to RssController::index_action() must be of the type int, string given

2025/03/27 16:41:04 [error] 15474#15474: *375503486 FastCGI sent in stderr: "PHP message: TypeError: Argument 2 passed to RssController::index_action() must be of the type int, string given, called in /var/www/studip-5.4/vendor/trails/trails.php on line 558 and defined in /var/www/studip-5.4/public/plugins_packages/UOL/SchwarzesBrettPlugin/controllers/rss.php:25
Stack trace:
#0 /var/www/studip-5.4/vendor/trails/trails.php(558): RssController->index_action(Object(SchwarzesBrett\Models\Category), 'rss')
#1 /var/www/studip-5.4/app/controllers/studip_controller.php(119): Trails_Controller->perform('6fd820cf7e9456e...')
#2 /var/www/studip-5.4/vendor/trails/trails.php(154): StudipController->perform('6fd820cf7e9456e...')
#3 /var/www/studip-5.4/vendor/trails/trails.php(121): Trails_Dispatcher->map_uri_to_response('rss/6fd820cf7e9...')
#4 /var/www/studip-5.4/lib/plugins/core/StudIPPlugin.class.php(205): Trails_Dispatcher->dispatch('rss/6fd820cf7e9...')
#5 /var/www/studip-5.4/public/plugins_packages/UOL/SchwarzesBrettPlugin/SchwarzesBrettPlugin.php(159): StudIPPlugin->perform('rss/6fd820cf" while reading response header from upstream, client: 80.228.89.10, server: elearning.uni-oldenburg.de, request: "GET /plugins.php/schwarzesbrettplugin/rss/6fd820cf7e9456ed08ced52542faff00/rss HTTP/2.0", upstream: "fastcgi://unix:/var/run/php-fpm.sock:", host: "elearning.uni-oldenburg.de"