Fatal error: Uncaught Error: Class 'League\OAuth2\Server\RequestEvent' not found in C:\xampp\htdocs\finance\vendor\league\oauth2-server\src\RequestAccessTokenEvent.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\finance\vendor\league\oauth2-server\src\RequestAccessTokenEvent.php on line 15