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: 01.05.2024 @ 22:12
Script: /board/board.php?boardid=3&sid=c1edf80e690895c164ecd68b1d4ef78e
Referer: