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 @ 22:02
Script: /board/markread.php?sid=b85c339cc7a173d4af22b8effc7dcfca
Referer: