SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Connection refused
mysql error number: 2002
mysql version: unknown
php version: 5.6.40-57+0~20211119.60+debian9~1.gbp8a9bd1
Date: 09.05.2024 @ 08:23
Script: /calendar.php?sid=48bf4e02b86ac42d040484f39ee48f4b
Referer: http://stc-board.de/calendar.php?sid=48bf4e02b86ac42d040484f39ee48f4b