03/29/2016 at 9:46 am
#370888
Keymaster
@ Roxanne
I see you are running WP Super Cache. Make sure you are not caching pages for logged in users or exclude the page which Form is on.
What is happening is the security token is being cached and expires which will result in this error. The tokens are a security precaution which is why they expire.
Hope that help, let me know.
