SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Too many connections
mysql error number: 1040
mysql version: unknown
php version: 5.3.2-1ubuntu4.28
Date: 26.07.2016 @ 06:29
Script: /mitglieder/kenshin_u167/sammelalbum/2010-3-quartal-sommer_a6400/
Referer: