VESTACP and Cloudflare -> Error: Let's Encrypt new auth status 429, rate limit, WHY?

[lesudo]

I solved it. Please delete this post, as I will publish a new post of how I did it but with no info of my client's website.

Thanks @JuergenAuer

EDIT:

I already post the fix here:

(Solved) VestaCP and Cloudflare -> Error: Let’s Encrypt new auth status 429, rate limit

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PLEASE delete this post.