What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I followed the instructions and I was able to see the jotform on this page: http://www.churros-nl.nl/bestellijst.htm
Now the issue that I see is that there is a div element that is transparent, but over the jotform, not allowing you to click on it.
This is the element:
div id="xr_xri" class="xr_ap" style="width: 981px; height: 1144px; overflow:hidden;">
It is a sibling of the element holding the jotform and seems to be holding the header elements.
If you change that element to have less in height it will work correctly:
<div id="xr_xri" class="xr_ap" style="width: 981px; height: 200px; overflow: hidden;">
This will work on this page, but you should check if that would cause issue on any other page.
The alternative would be to embed the jotform within this element instead.
You will not need to do any modifications on your jotform - only on the website.
Do let us know how it goes.