Fatal error: Uncaught Error: Class 'Ramsey\Collection\Map\AbstractTypedMap' not found in C:\xampp73\htdocs\web\vendor\ramsey\collection\src\Map\TypedMap.php:83 Stack trace: #0 {main} thrown in C:\xampp73\htdocs\web\vendor\ramsey\collection\src\Map\TypedMap.php on line 83