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 @ 23:00
Script: /board/search.php?action=user&userid=10&sid=855eb838dce1b7837fc674fbe72a33ee
Referer: