Fatal error: Uncaught TypeError: array_column(): Argument #1 ($array) must be of type array, string given in /home/jouwjour/app/controllers/Agenda.php:36 Stack trace: #0 /home/jouwjour/app/controllers/Agenda.php(36): array_column() #1 /home/jouwjour/app/core/App.php(44): Controller\Agenda->index() #2 /home/jouwjour/public_html/index.php(22): App->loadController() #3 {main} thrown in /home/jouwjour/app/controllers/Agenda.php on line 36