Please Help! getting error mesg: "Security Error: No _CSRFToken exists in session. Try reloading previous page."

Hi equiniox,

This is happening because the session that contains the users _CSRFToken (which is used to prevent Cross-Site Request Forgery) is being unset. There are a couple of things you could look into to fix this:

1. Try settings a directory to store your session data in, you can do this in the CMSB General settings area (see attached). On some hosting services the session files are deleted extremely often by the server unless you store them in a directory you can control.
2. CMS Builder is set up so that session cookies remain for 24 hours, but some servers ignore this and use their own session limits, you might have to contact your hosting company and see if you have access to the session.gc_maxlifetime variable:

3. ini_set('session.gc_maxlifetime', 3600);

You could also try disabling the `Check Referer` check box in the General Settings of the CMS, and see if this makes a difference, although your CMS backend will be slightly less secure if you do this.

Thanks,

Greg