Fatal error: Uncaught Error: Interface "Ramsey\Collection\ArrayInterface" not found in C:\www\Apache24\htdocs\agenda-dif\vendor\ramsey\collection\src\AbstractArray.php:29 Stack trace: #0 {main} thrown in C:\www\Apache24\htdocs\agenda-dif\vendor\ramsey\collection\src\AbstractArray.php on line 29