i delete all in /etc/letsencrypt
what i can do, what restore my ssl?
If you’re unable to restore the files, that’s not too bad. Let’s Encrypt will happily let you register a new account and get a new certificate for the same domain(s). Just follow the exact same instructions you used initially to get the certificate. 
but, after delete i generate all limit and then i get this error:
An unexpected error occurred:
There were too many requests of a given type :: Error creating new cert :: Too many certificates already issued for exact set of domains: domain.com
Please see the logfiles in /var/log/letsencrypt for more details
That means you issued more than 5 certificate with the exact same domains, or more than 20 certificates for subdomains below your domain. The rate limits will reset 7 days from your first issuance this week. You can find more details about the rate limits here.
If you ran into the rate limit for duplicate certificates (5/week), you can get around that by adding another subdomain. Short of that, you’ll either have to find a way to restore the files (which Let’s Encrypt can’t help you with - the private key is not shared with anyone) or wait 7 days.
How can I apply for the removal of all certificates in 7 days?
They don’t get removed, they just don’t count against your rate limit after 7 days, and you’ll be able to start issuing new certificates. This is just a way for Let’s Encrypt to prevent abuse and/or people accidentally issuing thousands of certificates for the same set of domains in short periods of time because of a bug.
There’s nothing you need to do on your end other than wait.
Thank you.!!!
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