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: 28.03.2024 @ 16:41
Script: /board/search.php?action=user&userid=8&sid=01944e6baf8b8a2542fe232755754f9b
Referer: