SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Too many connections
mysql error number: 1040
Date: 18.05.2024 @ 00:30
Script: /wbblite/usercp.php?action=addsubscription&threadid=903&sid=ff99628022bf037362f0d4ef0009397c
Referer: