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 @ 19:53
Script: /board/search.php?action=user&userid=3&sid=cf65ebb70f278418d0f95289e8c9830c
Referer: