When I do projects I encountered this problem, the first time I used a normal but when transferred to a different hosing of another company, then this phenomenon occurs, the initial code I think so, but after a while space exploration is not the cause of no.x IM
When the network is found to be caused by the configuration of the php.ini file, the configuration file located in the server, I immediately think of the solution is to create php.ini file and set menu where further treatment, but I think this is very time consuming.
So use htaccess to change php.ini (PHP does not apply only to apply to SuPHP)
If anyone have error limit in wordpress menu, add 2 lines to the test and try it out okay
php_value suhosin.post.max_vars 5000
php_value suhosin.request.max_vars 5000
Hopefully that will help you meet this error and read this article, this is the fastest solution. If you require hosing provider parameter changes, they will ask you to use your own server to automatically decide your destiny.