MyCoursesController::getMyCoursesData(): Argument 1 ($sem_courses) must be of type array, null given

Exception: MyCoursesController::getMyCoursesData(): Argument #1 ($sem_courses) must be of type array, null given, called in /var/www/studip-5.4/app/controllers/my_courses.php on line 710 in app/controllers/my_courses.php on line 733

Stack trace:

#$ app/controllers/my_courses.php(733)
#0 app/controllers/my_courses.php(710): MyCoursesController->getMyCoursesData()
#1 lib/modules/MyCoursesWidget.php(30): MyCoursesController->getPortalWidgetData()
#2 app/views/start/index.php(32): MyCoursesWidget->getPortalTemplate()
#3 vendor/flexi/lib/php_template.php(46): require('...')
#4 vendor/flexi/lib/template.php(157): Flexi_PhpTemplate->_render()
#5 vendor/trails/trails.php(767): Flexi_Template->render()
#6 vendor/trails/trails.php(727): Trails_Controller->render_template()
#7 vendor/trails/trails.php(567): Trails_Controller->render_action()
#8 app/controllers/studip_controller.php(119): Trails_Controller->perform()
#9 vendor/trails/trails.php(154): StudipController->perform()
#10 vendor/trails/trails.php(121): Trails_Dispatcher->map_uri_to_response()
#11 public/dispatch.php(25): Trails_Dispatcher->dispatch()
#12 {main}

Bei der Version bin ich mir nicht sicher. Ich setze das erstmal auf 5.4 und schaue gleich, wie weit sich das runterzieht.