SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: php_network_getaddresses: getaddrinfo failed: Name or service not known
mysql error number: 2002
mysql version: unknown
php version: 5.5.38
Date: 12.05.2024 @ 11:33
Script: /thread.php?threadid=855&goto=lastpost&sid=d35ec03bfcdc92aa7366e70f70945306
Referer: