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 @ 06:40
Script: /board/newthread.php?boardid=11&sid=b57b7f99f731fcc3b92a7f74184789cf
Referer: