Fatal error: Uncaught Error: Class "Doctrine\Common\Cache\CacheProvider" not found in /var/www/apache/dev/cal/web/vendor/doctrine/cache/lib/Doctrine/Common/Cache/ApcuCache.php:21 Stack trace: #0 {main} thrown in /var/www/apache/dev/cal/web/vendor/doctrine/cache/lib/Doctrine/Common/Cache/ApcuCache.php on line 21