Problem with Email Octopus sign up newsletter form

Hello,

We are having problem with the email octopus newsletter sign up form, we had a response from them saying that it was the cleantalk plugin that was creating this problem, and the sign up fprm does not work…if you want you can try to add a email on our webshop to verify :?https://www.jardimdapini.pt??, just scroll?down until you see the email octopus subscribe?form.

Thank you!

The page I need help with: [log in to see the link]