form will not submit

I have uszed 3 jot forms but 2 of them dont work. After publishing anjd ten testing jotform on use completes all questions but then on submission, says there is an error on the form please correct "mobile number" for example and there is no "mobile number to complete so the form doesn't submit.

May we know the form in question?

May we know if your forms are embedded to a web page?

I have cleared your form cache, can you please try to test your form again and let us know if the issue still remains?

Looking forward for your response.