Fatal error: Uncaught Error: Class 'Ramsey\Collection\AbstractArray' not found in D:\xampp\htdocs\psp\backend\vendor\ramsey\collection\src\Map\AbstractMap.php:33 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\ramsey\collection\src\Map\AbstractMap.php on line 33