Error message after hitting submit

Hello,

I recently made my survey go live and had one survey taker run into an error message after hitting submit. Others have had successful submissions, therefore I do not know if the error is on the form or on the surveyor's end. May you help me troubleshoot through this? 

I am unable to retrieve her IP address, but I know her name and email if that helps. 

Her name is Cindy Kagey and her email address is  Cindy.Kagey@pdza.org

Our apologies for the inconvenience. 

There is no entry from the given email address. The entry is not saved in the form due to that error. We have this problem a few hours ago, but we've fixed it already. Please suggest users to try again and let us know if the issue persists.