Form plug in no longer working

We downloaded this plugin over a year ago, assuming it was associated with Constant Contact. It has stopped working and is now no longer synched with the CC account. We went to Constant Contact support and they claimed not having anything to do with this plug in and want us to rip it out and recode all the forms. I am very disappointed at the moment. I am looking for a quick update or something to resolve this issue. We have 3 forms on the site and all 3 are no longer adding information to our Constant Contact account. How can we update without loosing our forms.

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