Fatal error: Uncaught Error: Class "Ramsey\Collection\AbstractCollection" not found in C:\Apache24_x64\htdocs\ex-vak\vendor\ramsey\collection\src\Collection.php:73 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ex-vak\vendor\ramsey\collection\src\Collection.php on line 73