Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Call to a member function get() on null in /var/www/html/vendor/doctrine/cache/lib/Doctrine/Common/Cache/RedisCache.php:55 Stack trace: #0 /var/www/html/vendor/doctrine/cache/lib/Doctrine/Common/Cache/CacheProvider.php(199): Doctrine\Common\Cache\RedisCache->doFetch('DoctrineNamespa...') #1 /var/www/html/vendor/doctrine/cache/lib/Doctrine/Common/Cache/CacheProvider.php(176): Doctrine\Common\Cache\CacheProvider->getNamespaceVersion() #2 /var/www/html/vendor/doctrine/cache/lib/Doctrine/Common/Cache/CacheProvider.php(107): Doctrine\Common\Cache\CacheProvider->getNamespacedId('langues_news') #3 /var/www/html/vendor/craue/config-bundle/CacheAdapter/DoctrineCacheBundleAdapter.php(28): Doctrine\Common\Cache\CacheProvider->contains('langues_news') #4 /var/www/html/vendor/craue/config-bundle/Util/Config.php(68): Craue\ConfigBundle\CacheAdapter\DoctrineCacheBundleAdapter->has('langues_news') #5 /var/www/html/src/Addict/Bundle/WebBundle/Controller/DiversCon in /var/www/html/vendor/doctrine/cache/lib/Doctrine/Common/Cache/RedisCache.php on line 55