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: 19.04.2024 @ 12:34
Script: /board/addreply.php?threadid=842&sid=81a4cb06cf23f2774ecf64f529f0d283
Referer: