My iFrame registration form is giving an error upon submission

A 5-2 Bad Gateway error is being displayed when customers try and submit their registration form

Unfortunately, I wasn't able to replicate the issue. I opened your webpage and I did a test submission in your form. It was successful, the Thank You Page appears after I hit the Submit button.

It is possible that your users got disconnected or having a connection issue when they try to submit the form. You may suggest trying another browser if the issue persists.

Hope that helps. Let us know if you're still having issues. Thank you.