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: 26.04.2024 @ 00:20
Script: /board/usercp.php?action=buddy_list&sid=ded8b856cf6083373a825aae24c6e35e
Referer: