This error message can be the result of a few problems, mostly relating to how your browser is interacting with the server hosting your eXtend Control Panel.
If you have your browser’s security settings set very high, you may be blocking the eXtend Control Panel from placing cookies. Cookies allow a site like the eXtend Control Panel to remember you while you are on the site, keeping you logged in while you are using the site.
You should ensure that your browser, firewall, and proxy software is all set up to allow cookies for the eXtend Control Panel.
Occasionally, the eXtend Control Panel will give you the security error if your computer’s clock is off by over 30 minutes. Change the time on your computer, and this should solve this problem.
And finally, it may be that your account has been disabled and you are not allowed to access the control panel. Please raise a Support Ticket with the Customer Services team if you think this may be the case.
Article ID: 271
Created On: Fri, Mar 13, 2015 at 1:10 PM
Last Updated On: Mon, Apr 13, 2015 at 3:48 PM
Online URL: https://www.heartinternet.uk/support/article/why-do-i-get-the-error-for-security-reasons-your-session-has-expired-when-i-access-my-extend-control-panel.html