Fatal error: Uncaught Error: Class 'Xibo\Exception\XiboException' not found in /home/rijschoolmk/xibo.rijschool-mk.be/lib/Exception/InvalidArgumentException.php:15 Stack trace: #0 {main} thrown in /home/rijschoolmk/xibo.rijschool-mk.be/lib/Exception/InvalidArgumentException.php on line 15