Fatal error: Uncaught Error: Interface 'Xibo\Service\DateServiceInterface' not found in /home/rijschoolmk/xibo.rijschool-mk.be/lib/Service/DateServiceGregorian.php:27 Stack trace: #0 {main} thrown in /home/rijschoolmk/xibo.rijschool-mk.be/lib/Service/DateServiceGregorian.php on line 27