Fatal error: Uncaught Error: Class 'Vich\UploaderBundle\Handler\AbstractHandler' not found in /home/itscm/dev.its.cm/webserivesits/vendor/vich/uploader-bundle/src/Handler/UploadHandler.php:19 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webserivesits/vendor/vich/uploader-bundle/src/Handler/UploadHandler.php on line 19