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: 26.04.2024 @ 12:41
Script: /board/search.php?action=user&userid=54&sid=502dc134424f4f5be36ee3c49cd895a3
Referer: