Fatal error: Uncaught Error: Interface 'League\OAuth2\Server\ResponseTypes\ResponseTypeInterface' not found in C:\xampp\htdocs\finance\vendor\league\oauth2-server\src\ResponseTypes\AbstractResponseType.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\finance\vendor\league\oauth2-server\src\ResponseTypes\AbstractResponseType.php on line 19