Only one entry allowed error on form

Why are my customers getting this message? Please see screenshot

There is no submission recorded in jotform, yet people are getting that message.

I have checked your form and it seems you may have enabled unique submissions.

If your users are using your form under one IP address, they will not be able to submit the form if a submission has been made already.

Kindly disable this feature, to enable your users with the same IP address to submit the form.

Please give it a try and let us know how it goes.

Thank you.