Fatal error: Uncaught RedisException: php_network_getaddresses: getaddrinfo for cache failed: Name does not resolve in /var/www/localhost/htdocs/phpbb/cache/driver/redis.php:65 Stack trace: #0 /var/www/localhost/htdocs/phpbb/cache/driver/redis.php(65): Redis->connect('cache', 6379) #1 [internal function]: phpbb\cache\driver\redis->__construct() #2 /var/www/localhost/htdocs/vendor/symfony/dependency-injection/ContainerBuilder.php(1176): ReflectionClass->newInstanceArgs(Array) #3 /var/www/localhost/htdocs/vendor/symfony/dependency-injection/ContainerBuilder.php(634): Symfony\Component\DependencyInjection\ContainerBuilder->createService(Object(Symfony\Component\DependencyInjection\Definition), Array, true, 'cache.driver') #4 /var/www/localhost/htdocs/vendor/symfony/dependency-injection/ContainerBuilder.php(588): Symfony\Component\DependencyInjection\ContainerBuilder->doGet('cache.driver', 1) #5 /var/www/localhost/htdocs/common.php(139): Symfony\Component\DependencyInjection\ContainerBuilder->get('cache.driver') #6 /var/www/localhost/htdocs/posting.php(20): include('/var/www/localh...') #7 {main} thrown in /var/www/localhost/htdocs/phpbb/cache/driver/redis.php on line 65