Error while filling out forms

Hi there,

My client was recently filling out my online forms and when she went to submit it gave her an error.

Here is her email with the error information:

So I finally finished filling out the form and when I went to submit it, it gave me an unauthorized error and suggested that I reload the page. Instead of reloading, I went to your original email and tried to open another tab hoping not to delete or disrupt the form I already filled out.  Anyway, it reloaded the page with a new blank form .  Please tell me you got my completed form.  I spent a very long time filling it out and at this point, I can’t imagine doing it all over again.

Was this a glitch on her end, or a glitch with Adobe? What should I do on my end so that this doesn't happen again? I don't want to frustrate my clients.

Thank you so much!

Randi