Some of our form submissions are not making it through

I've now had 2 different people tell me that they submitted to this form- https://form.jotform.com/80995905784172

Why would this be happening? I'm concerned that we're losing vendors for our event!

Hello,

Do you have the form embedded on a certain web page? If yes, can you share with us the link to the page? We would like to check and see if we can replicate the problem on our end.

We shall look forward to your response.