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: 08.05.2024 @ 00:45
Script: /board/newthread.php?boardid=11&sid=ce8b6231deacaec916e73454fc99651e
Referer: