Why this my account is not valid?

I am not sure if I have understood your issue correctly. I did check your account and did not find any issue with that. It is already active and you should not have any trouble. 

Are you seeing any error message when you try to sign in to your account? Please explain your issue a bit more in detail and we will try to help you. You may also like to share a screenshot of the issue as well. The following guide should help you how to upload image in forum post:  https://www.jotform.com/help/438-How-to-Post-Screenshots-to-Our-Support-Forum

We will wait for your response.