Issue facing in External Site Registration in iRecruitment

Hi,

 When attempting to click on Register Today button on external website the below error raises

You are trying to access a page that is no longer active.
- The referring page may have come from a previous session. Please select Home to proceed.

This issue doesn't happens when the same is tried in internal network.

Fnd log is attached for your reference..

Requesting your help on the same.

Thanks,

Raj