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: 19.04.2024 @ 14:39
Script: /board/profile.php?userid=8&sid=9302804d16b9bfcca3e9634d4c5df721
Referer: