Getting an "Invalid Refresh Token" error when submitting form.

Im having the exact error on the form below: 

https://form.jotform.co/PRVM01/intermediate-registration

Help! 

Thanks for letting us know about this, I can see what you mean:

Can you please try removing the integration and re-integrating again? You might need to generate a new API key: http://ug.infusionsoft.com/article/AA-00442/0/How-do-I-enable-the-Infusionsoft-API-and-generate-an-API-Key.html