Issue with Constant Contact Form

I am hoping to set live a wordpress site that has been built by a third party and handed over to ourselves. They have added the Constant Contact connection but I am now seeing the error message ‘Constant Contact Forms has experienced issues that may need addressed and functionality may be missing. Please enable the “Support” checkbox under the Support tab in?Constant Contact settings?and start a?forum support thread. Our support team will aid with further steps.’ Therefore I am doing as it has told me. Please could you advise on the next steps.

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