SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: The server requested authentication method unknown to the client
mysql error number: 2054
Date: 24.04.2024 @ 05:29
Script: /board/search.php?action=user&userid=1&sid=8044f8db852ac082d85f715505479bc8
Referer: