An unexpected error occurred.

Argument 1 passed to Concrete\Core\Attribute\Controller::__construct() must be an instance of Doctrine\ORM\EntityManager, instance of DoctrineProxies\__CG__\Concrete\Core\Entity\Attribute\Type given, called in /var/www/conservatoriummaastricht.nl/www/html/application/blocks/staff_overview/templates/jazz.php on line 35