Fatal error: Uncaught Error: Class 'Drupal\openid_connect\Plugin\OpenIDConnectClient\OpenIDConnectGenericClient' not found in /var/www/html/tmp/contrib/openid_connect/src/Plugin/OpenIDConnectClient/Generic.php:15 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/openid_connect/src/Plugin/OpenIDConnectClient/Generic.php on line 15