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: 24.04.2024 @ 23:51
Script: /board/search.php?action=user&userid=6&sid=d0c201d8544c1eb7eefbf8574f336d59
Referer: