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: 10.05.2024 @ 01:20
Script: /board/newthread.php?boardid=2&sid=209928811b6b13c126ef911a0661bf93
Referer: