"You get more information about the problem in our knowledge base:

Information:
error message: Connecting to MySQL server 'localhost' failed.
error code: 1040
sql type: MySQLDatabase
sql error:
Too many connections
sql error number: 1040
sql version:
file: /var/www/web69/html/wcf/lib/system/database/MySQLDatabase.class.php (31)
php version: 5.3.3-7
wcf version: 1.1.3 (Tempest)
date: Sat, 27 Aug 2011 20:43:41 +0000
request: /
referer:
Stacktrace:
#0 /var/www/web69/html/wcf/lib/system/database/Database.class.php(78): MySQLDatabase->connect()
#1 /var/www/web69/html/wcf/lib/system/WCF.class.php(296): Database->__construct(...)
#2 /var/www/web69/html/wcf/lib/system/WCF.class.php(95): WCF->initDB()
#3 /var/www/web69/html/global.php(18): WCF->__construct()
#4 /var/www/web69/html/index.php(7): require_once('/var/www/web69/...')
#5 {main}"
also kann man von einer ddos attacke ausgehn^^