Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for mariadb_shared failed: Temporary failure in name resolution in /var/www/html/modules/connect.inc on line 4

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for mariadb_shared failed: Temporary failure in name resolution in /var/www/html/modules/connect.inc:4 Stack trace: #0 /var/www/html/modules/connect.inc(4): mysqli->__construct('mariadb_shared', 'sferadbuser', Object(SensitiveParameterValue), 'tawil_sferadb') #1 /var/www/html/index.php(13): include('/var/www/html/m...') #2 {main} thrown in /var/www/html/modules/connect.inc on line 4