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 @ 19:26
Script: /board/search.php?action=user&userid=8&sid=26a17add0ff2693c7f0134d44a5c4f89
Referer: