Contact Form Conflict Issues

I have been wondering why I haven’t been getting form submissions from my website and when i checked today something weird happens. When you hit submit, nothing happens except it scrolls up to browser address bar and shows some weird code of ?optin=on and nothing happens. I deleted the form and just put a generic form in its place and it still does the same thing.

I have the form in my footer so it’s site wide. It works on all pages but the home page? I do have a animated counter installed , would that interfere with the contact form script? If so what can I do to fix this?