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: 29.03.2024 @ 08:51
Script: /board/usercp.php?action=buddy_list&sid=a841372f209ab84062413da7f15a9a85
Referer: