Fatal error: Uncaught Error: Class 'League\Flysystem\Plugin\AbstractPlugin' not found in C:\xampp73\htdocs\web\vendor\league\flysystem\src\Plugin\ForcedCopy.php:8 Stack trace: #0 {main} thrown in C:\xampp73\htdocs\web\vendor\league\flysystem\src\Plugin\ForcedCopy.php on line 8