@yabloky Please post new problems in a new thread.
But, the same advice I gave @iman-rameshni applies to you. I further advise you to use the staging system when testing to avoid this rate limit. I don't know how to do that on Cyberpanel but ask on their support or forum how to do that.
Use one of the 5 certificates you already received this week,
Wait for the time to expire and you can get a new one, or
Get a not-exactly duplicate certificate that covers a slightly separate set of names.
You'd need to describe more about how you got to this point in order to get more specific help I'd think, since by the time you get this error message that means that you've been successfully getting certificates.
No. Issuing a certificate means that Let's Encrypt needs to do all sorts of validation, track stuff for audit purposes, and commit to replying to OCSP for the lifetime of the certificate. Rate limits are required to prevent abuse of Let's Encrypt's resources. The work is necessary for each of those certificates you've made, even if you don't end up using them.
Thank you for explaining. How can I use certificates that have already been issued? Is it possible to find their data somewhere? Because cyberpanel doesn't show it, there is just a button "get certificate" and that's it, and I have already reinstalled it on the server and there are no backups of course
Sorry, I was just giving generally what the error means (and I was confusing your situation with the original one in the original thread this was posted in), I don't know anything about Cyberpanel. I would only expect you to run into that kind of issue if you've reinstalled multiple times without backups. Certificates should be persistent and reused from one installation to the next if you're installing multiple times.