SQL-DATABASE ERROR

Database error in (): Link-ID == false, connect failed
mysql error:
mysql error number:
mysql version: unknown
php version: 7.4.33-nmm5
Date: 26.07.2024 @ 20:36
Script: /wbb2/index.php/banner/js/images/bilder/board.php?boardid=111%3Fsid%3Da4c1781cb2715a609cb0c6aede7c32f1
Referer: