I had to disable Visual Composer to return to work. But I use the plugin as my builder. What do I do? Because the tips of the forum did not work for me.
If above explanation did not help, then you must contact with your hosting provider because this problem is related with limited memory on your server.
Comments
please take a look at http://forum.muffingroup.com/betheme/discussion/464/betheme-options-page-stops-working-muffin-options-saving where everything has been described.