Firstly, much thanks for the great app. It's been a great help in getting my forms going.
A bit of a problem I'm having, though. I set up a multi page form and in the preview the paging works, but the repeat links aren't showing. But when I download the source and add it to my site, the whole thing appears on the same page. In other words, every page of the form shows up on what is supposed to be the first page of the form.
I have checked the source code on the form preview page, and verified that I have all of the scripts and css that is called there uploaded and called on the form on my site. I tripled checked and re-downloaded the scripts from the preview page and overwote the ones on my site, but all the pages still show as one on my site, and the repat links aren't showing.
Another issue that I'm having is that within the questions on my form, I have them set as repeatable, but the repeat links are not showing up. When the form was set as 1 page as opposed to the multi page, the repeat links where there and worked fine. But upon splitting the form into multiple pages, the repeat links all dissapeared.
The form is quite involved, and I think having the questions split into multiple pages would greatly help in usibility and reduce mistakes.
I made a copy of your form with a multi-page + repeat layout: http://app.formassembly.com/forms/view/5750
I think the problem came from the fact that a section cannot be both a 'page' and 'repeated' (we ought to disable this in the form builder). Instead create first a 'page' section, then add a new section inside and make it repeateable.
Have you completed the HTML template code provided by our website to have the <html> <head></head> <body></body> </html>
form required of webpages? If this is not in place, some browsers will not correctly interpret the form data and produce an error like you are reporting. If you could, please provide a link to the page with the form you are working with.