Account creation on ACMEv1 is disabled

I was using:
GitHub - cliftonm/acme: UI for obtaining SSL certificates from LetsEncrypt
Now I get this error:

using server https://acme-v01.api.letsencrypt.org/
Account creation on ACMEv1 is disabled. Please upgrade your ACME client to a version that supports ACMEv2 / RFC 8555. See End of Life Plan for ACMEv1 for details.

How could to convert it to v2, could you please share what I should to add or provide a update for this sample please. thanks.

Hi @mahdi666mahdi7

looks like your client is deprecated.

Check the documentation of that client.

Or switch to another client.

Thanks for your answer.
Can’t understand the link, What I expect is like any other project, for example google provide new push notification api, It was just about changing url.
Here on ACMEv2 everything change and there is no new windows form application just like https://github.com/cliftonm/acme

So Let’s Encrypt changed whole thing and developers like cliftonm can’t provide new version…

Then please read the basics.

If you use a deprecated client, you have to select a new client.

A client

on 25 Aug 2017

is deprecated. And the v2 exists since 2018, so it's an old change.

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