Login with your subscribed Email ID to verify your Subscription on WDMtech.

I have had vcart for several years, now the login page comes up:
Login with your subscribed Email ID to verify your Subscription on WDMtech.
What do I enter there?
I have tried logging in to your site but it says I need to enter an email address

Hi,

Did you re-install vChart OR It is fresh installation?

Note: To validate it on any site after installation you need an active subscription. You can use vChart lifetime once you install and validate your subscription on any site.

Hi.
I have not updated in 3 years and it has worked before.
I paid for a new period to be able to download the latest version, it was 3 years since I last paid.

Login page only comes up on installation, if you have installed it then you need an active subscription to validate it. Please renew your subscription.

I have renew the subscription, last time was 2018.
I renewed to update but I have not installed yet the login came up.
How do I get rid of it?
I do not know which email address I should use, because I do not use anyone when I log in to this page only username and password.

You renewed it in 2018, it must be expired. You should have install and validate it in your active subscription period.
So now if you install and validate it on any site you need an active subscription.