Accidentally deleted certificate... help!

Help! I mistakenly deleted my certificate(s) and want to know what I can do to retrieve them...

My domain is:
I ran this command: I'm trying to create new certificate, after mistakenly deleting the one(s) I had.
It produced this output: Maximal certificate requests reached for the domain name.
My web server is (include version): Synology 918+
The operating system my web server runs on is (include version): DSM 7.2
I can login to a root shell on my machine (yes or no, or I don't know): I don't know
I'm using a control panel to manage my site: DSM 7.2

How many certificates did you delete in the last seven days?

You'll have to wait. There's a maximum of five identical certificates every seven days.


Only two for this subdomain... the first one timed out, and we didn't think it was created, and the second one was successful. But we weren't sure which was which, and mistakenly deleted both, thinking we could simply request another one. FYI, they were both created and deleted yesterday, October 17th.

Are you sure?


Am I sure? haha, who ever be SURE (me being a newbie at this), but I'm fairly confident. Although, we did create 5 other certificates for other subdomains, using the same email address though, does that count?

But, is there any way to retrieve the deleted certs?

Nope. It does look like you made 5 certs for this name.

Certs yes, private key no. Do you have the private key?


I know for sure I didn't attempt to create more than two for that particular subdomain. But, again, who knows?

I don't even know what a private key is, or where I would get it.... I don't recall anything of that sort appearing when creating the certificate.

Am I doomed?

Not doomed. You have two options:

  • wait for the 24th
  • use a different subdomain
  • add another subdomain on the certificate

Per the public Certificate Transparency logs I see 5 already issued. All issued within about 8 minutes of each other

PS: Sorry, just realized 9peppe's previous post was a link to with same info


Wait for the 24th of October? or 2024???

Not sure what this means.

Thanks for your reply, and your help with this, it is greatly appreciated. I know us newbies can be a pain in the @ss so I am grateful for your assistance.

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Sadly, Synology removes much of the message info sent by Let's Encrypt.

One of the parts they removed was a link to the below article.



I did say it's seven days, did I? :smiley:


Thanks for the link, it's great information, thank you!

I followed the instructions indicated in the link for the suggested Workaround, but I'm still getting an error message telling me to logout of DSM and try again. I've done that twice, same error, and reluctant to try again fearing I might be creating more failed certs and blocking myself again.

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Yeah, that's really more of a Synology question. You might try asking on their forum.

And, perhaps there is some help at their general instructions. I don't personally have a Synology so I can only offer general advice.


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