Why my form shows "only one entry is allowed" message?

Hi, I am currently in the process of creating a form to be embeded into my website wher people can order prints from my online printing service.

I ave managed to get on "Test Order"to work, but other than that I constantly get the message 

"Sorry, Only one entry is allowed" . See attached screen shot.

The page isnt live yet but can be accessed at the following link

https://form.jotform.com/AlteredImagesPhoto/fine-art-printing-order-new

Any help would be greatly appreciated.

Regards,

Ian.

That error shows if the unique submission feature is enabled in your form settings:

To know more about unique submission, please refer to this guide: How-to-Set-Unique-Submissions-on-a-Form

To disable the unique submission in your form, you will need to set it to "NO CHECK".