Fatal error: Uncaught Error: Class "League\OAuth2\Server\Grant\AbstractAuthorizeGrant" not found in /home/amper418/shopv2.amperio.ch/vendor/league/oauth2-server/src/Grant/ImplicitGrant.php:23 Stack trace: #0 {main} thrown in /home/amper418/shopv2.amperio.ch/vendor/league/oauth2-server/src/Grant/ImplicitGrant.php on line 23