Some challenges have failed error

Looking at your certificate history it looks like this is the first time you are trying with Certbot. The EFF stopped supporting Windows with Certbot over a year ago. You should not use it for new setups.

For IIS, Certify the Web is an excellent alternative. It is the first alternative mentioned in the EFF announcement: https://certifytheweb.com/
Certbot Discontinuing Windows Beta Support in 2024

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