SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Too many connections
mysql error number: 1040
Date: 25.05.2024 @ 15:22
Script: /usercp.php?action=addsubscription&threadid=3703&sid=5b259cf2c2ad3af5e8c2c86e78df15e2
Referer: