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 @ 23:03
Script: /board/search.php?action=user&userid=53&sid=e2ecc583346f821a39a843c1bbda9f26
Referer: