Fatal error: Uncaught Symfony\Component\Debug\Exception\UndefinedFunctionException: Attempted to call function "apc_fetch" from namespace "Doctrine\Common\Cache". in /var/www/private/keeper/vendor/doctrine/cache/lib/Doctrine/Common/Cache/ApcCache.php:40 Stack trace: #0 /var/www/private/keeper/vendor/doctrine/cache/lib/Doctrine/Common/Cache/CacheProvider.php(191): Doctrine\Common\Cache\ApcCache->doFetch('DoctrineNamespa...') #1 /var/www/private/keeper/vendor/doctrine/cache/lib/Doctrine/Common/Cache/CacheProvider.php(164): Doctrine\Common\Cache\CacheProvider->getNamespaceVersion() #2 /var/www/private/keeper/vendor/doctrine/cache/lib/Doctrine/Common/Cache/CacheProvider.php(78): Doctrine\Common\Cache\CacheProvider->getNamespacedId('PartKeepr\\AuthB...') #3 /var/www/private/keeper/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Mapping/AbstractClassMetadataFactory.php(211): Doctrine\Common\Cache\CacheProvider->fetch('PartKeepr\\AuthB...') #4 /var/www/private/keeper/vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php( in /var/www/private/keeper/vendor/doctrine/cache/lib/Doctrine/Common/Cache/ApcCache.php on line 40