Fatal error: Uncaught Error: Class 'League\OAuth2\Server\Grant\ClientCredentialsGrant' not found in /var/www/html/tmp/contrib/simple_oauth/src/Grant/ClientCredentialsOverrideGrant.php:13 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/simple_oauth/src/Grant/ClientCredentialsOverrideGrant.php on line 13