navigation problems


I connect to the application by entering the correct username and password, once on the home page and all good, but when I click on a link (one of the menus) the system logs out me, and displays the following message: You have been logged out becaufe your session expired.

I need your help, it is very urgently

Infos: SUITECRM 7.1.5

Ensure that you have no other SuiteCRM windows open in your browser.

Also ensure the session timeout on your server is set correctly.



where can I verify that ?
the web server that I use is the WampServer