Fatal error: Uncaught Error: Class 'KnpU\OAuth2ClientBundle\Client\OAuth2Client' not found in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/src/Client/Provider/HerokuClient.php:17 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/src/Client/Provider/HerokuClient.php on line 17