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: 27.08.2016 @ 03:05
Script: /mitglieder/tomokazukyon_u1322/sammelalbum/best-of-anime_a2943/
Referer: