SQL-DATABASE ERROR

Database error in (): Link-ID == false, connect failed
mysql error:
mysql error number:
mysql version: unknown
php version: 7.4.33
Date: 22.05.2024 @ 15:21
Script: /wbb2/jgs_galerie_userbilder.php?userid=2&sid=e35e9face9f478bd9e4d8af4f98bec0c
Referer: