Form not found

hello, I just created a form . When one of my creditors tried to fill out the form it keep saying form not found. What is going on? 

This is a duplicate thread to https://www.jotform.com/answers/1148493/? which is just addressed. So, we are marking this thread as answered. If you have any questions with this issue, we request you to follow-up on the other thread.

Thank you!