Fatal error: Uncaught Error: Class 'Assetic\Filter\BaseProcessFilter' not found in /home/cooplafobq/newplanning/vendor/kriswallsmith/assetic/src/Assetic/Filter/GssFilter.php:24 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/kriswallsmith/assetic/src/Assetic/Filter/GssFilter.php on line 24