Ошибка подключения, код: 2002, сообщение: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for mariadb failed: Name or service not known

#0 /var/www/production/public/bychkovvv/classes/data.php(221): __Debug::out() #1 /var/www/production/public/bychkovvv/classes/data.php(252): BychkovVVNamespace\Data::onError() #2 /var/www/production/public/bychkovvv/classes/data.php(330): BychkovVVNamespace\Data::getDBHandle() #3 /var/www/production/public/bychkovvv/classes/data.php(370): BychkovVVNamespace\Data::query() #4 /var/www/production/public/index.php(21): BychkovVVNamespace\Data::get()