Page break: Next button not working

hi i have been using jotforms for a while and today the forms seem to be really slow loading on my site or dont load at all. when they do load they arent working, back and next buttons dont work. the first page is showing a back and next button this should just be a next button. Whats going on guys having real problems with Jot forms this week.

the forms can be seen here 

http://form.jotformeu.com/form/51403920385350?

on my site 

http://claimscareline.co.uk/joint-will/ 

thanks 

Your form is quite long. I was able to replicate your issue when I checked the embedded form on the webpage. The next button is not working. However, when I checked the form's direct URL, the next button is responding properly.

Please try to re-embed the form using the iFrame method. It is possible that the scripts on your web page are having conflicts with the scripts on the form. 

Hope this works. Thank you.