Form is missing __token or __ts fields

I'm not sure on what is mean but I install the latest elgg installment and everytime I try and save setting on my site from any plugins or widgets I get this message (Form is missing __token or __ts fields) Can anyone help me and direct me on how to fix this problem

 

  • This is due to a security enhancement in 1.7.  Please search the site, as it has been addressed many times.

  • I'll add to this that you should turn off all 3rd-party plugins and if you still get this when you try to save the settings of a widget, there is probably something wrong with your setup. I would copy all the code over again and if it still happens, there is probably something odd about your server/Elgg config.