What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I have responded to your original issue here https://www.jotform.com/answers/509113
When you are able to get past the account login issue, you can now follow the guide here
to test the import process of your Formcentral forms to JotForm1. Navigate to our Import Forms page, click on "Import Form":
Hope this help. Let us know if you need further assistance.