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: 06.07.2025 @ 21:59
Script: /board/usercp.php?action=buddy&add=53&sid=453358f9bb4220137857a7f15b75ad05
Referer: