Fatal error: Uncaught Error: Class "League\OAuth2\Server\Grant\AbstractGrant" not found in /home/hagi/public_html/virtual/vendor/league/oauth2-server/src/Grant/ClientCredentialsGrant.php:22 Stack trace: #0 {main} thrown in /home/hagi/public_html/virtual/vendor/league/oauth2-server/src/Grant/ClientCredentialsGrant.php on line 22