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 @ 07:50
Script: /board/newthread.php?boardid=11&sid=2f4ffef7af3e85def9ad49bee429bccf
Referer: