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 @ 05:12
Script: /board/search.php?action=user&userid=1&sid=32dd67a50521ffe6d035ba877567a8dd
Referer: