Why I can't directly submit a form?
Sometime, when you want to submit a form, you might receive the following error message:
The security token does not exist or the time of expiry of the security token has expire. Please try again!
This is a security message that prevents the form from being sent directly because pH7CMS uses tokens to prevent CSRF vulnerabilities.
Generally, you get it when you stay too long on the same form, because there is a time limit. However, you can change this time in the Admin Panel -> Settings -> General -> Security -> CSRF token lifetime.