When working on or browsing a NetCommunity site, the user's session may appear to time out prematurely. An error message may display "There was an unexpected end of session. The program attempted to recover a recent version of unsaved changes to the form."
Additionally, this can take the form of an administrative or supervisor user being logged out just a few minutes after logging into the site. It can also take the form of an end-user attempting to complete a form on the NetCommunity website (like an Event Registration form) and being sent back to step 1 of the form when attempting to submit the form.
You may also notice you'r unable to make any changes to the form or the form greys out when adding or removing fields.
Click Chat with Support and reference this article