I can not access XIBO features. The form has expired. Please reload

I use version 1.7.1 of XIBO and since last semama, I can no longer access the system features, when trying to perform any procedure appears the message:
The form has expired. Please reload.

Thank you for your help

I’d first try clearing your browser cache, and if that doesn’t work, try from a different web browser or computer if you can.

If it still isn’t working, if you have access to the database you can try truncating the session table in the database, or asking your server administrator to do that for you.