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: 29.03.2024 @ 07:08
Script: /board/search.php?action=user&userid=6&sid=eb11b0119a83819766606d243015df17
Referer: