Fatal error: Uncaught Error: Class 'League\OAuth2\Client\Grant\AbstractGrant' not found in /home/mpolsk5/public_html/visibilityfuel.com/vendor/league/oauth2-client/src/Grant/ClientCredentials.php:22 Stack trace: #0 {main} thrown in /home/mpolsk5/public_html/visibilityfuel.com/vendor/league/oauth2-client/src/Grant/ClientCredentials.php on line 22