Users unable to do multiple submissions

I am still having a problem with when a person goes to sign up and uses a form, and it doesn't go through and they try it again, it shows that they can't complete it and get an error. The picture below is the error that they get. I have asked previously and they told me that No Check needs to be marked on the Unique submission and unique question. What I have done wrong.

Thank you for reaching out to us. We apologize for the inconvenience. This appears to be the last form you edited: https://form.jotform.com/202646271366153

Is that the form in question? I have cleared your forms cache. If the problem persists, please allow us to do submissions in your form in order to test it.

I just have a couple people that are struggling with it.

Please ask them to try clearing their browsers cache or use a different browser.

It worked this time, thank you. I will see if I can get the other person through I was having trouble with. Thank you for your help.

You are welcome. Feel free to contact us anytime.