Why is my form not moving to next page when I click on the next button?

I've uploaded a form to my website but it only goes to a certain point and I cant hit next to go to the next one. We need this to be fixed asap!

I have been testing your form and I can see it works, I was able to fill it out without any problem, here's a screenshot of the thank you page I got: 

May you please provide us more details about which question is causing issues or where the form does not allow to submit, we will be happy to have another look on it. 

We will wait for your response.