After installing Wordfence plugin on my site I started to receive quite lot of such errors:
Warning: mysql_connect() [function.mysql-connect]: User xxxxxxxxx already has more than 'max_user_connections' active connections in xxxxxxxxxxxxxx/wp-content/plugins/wordfence/lib/wfDB.php on line 56
I have such errors both in Wordpres admin panel and at front end of my various web pages.
I think is quite common error. Just please try to search Google for following phrase:
wordfence already has more than 'max_user_connections' active connections
There will be plenty of similar errors already indexed by Google
Please help me to solve this issue.