Fatal error: Uncaught Error: Class "Ramsey\Collection\AbstractCollection" not found in C:\xampp\htdocs\astra-backoffice\vendor\ramsey\collection\tests\Mock\FooCollection.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\astra-backoffice\vendor\ramsey\collection\tests\Mock\FooCollection.php on line 12