Fatal error: Class FreelancePhp\Modules\Agenda\Availability\AvailabilityController contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (FreelancePhp\Modules\Agenda\AbstractAgendaController::getHeadingTemplate) in /home/foodbox/system/public_html/freelancephpprogrammeur.nl/modules/Agenda/Availability/AvailabilityController.php on line 8