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: 18.04.2024 @ 06:10
Script: /board/search.php?sid=b8488b9966cb8c683a5b48780a4a12c4
Referer: