Error Authorizing

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My domain is:

I ran this command: I open letsencrypt v1.9.11.2 and everything works fine until: Enter an email addres, I enter my email…

It produced this output: Error authorizing; Error DependencyResolutionException; Error Create certificate failed

My web server is (include version): VPS

The operating system my web server runs on is (include version): Windows server 2016


I think the software you are using is extremely outdated…
According to the release page of that software, the latest version is

I would guess that the version you are currently using is still trying to access the now depreciated ACMEv1 API, which although not finished the depreciation cycle, but doesn’t allow new registration.

Try to upgrade your software to latest version and try again.

Thank you

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