Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo failed: Name does not resolve in /var/www/certbot/dashboard/index.php on line 11

Warning: mysqli::__construct(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name does not resolve in /var/www/certbot/dashboard/index.php on line 11
Connection failed: php_network_getaddresses: getaddrinfo failed: Name does not resolve