I used [letsencrypt](https://letsencrypt.org/) to generate SSL Cert with standalone option, then I generated successfully a SSL cert.

I went to the AWS Load Balancer to config a listener at port 433 and used the SSL cert that I generated before to import at this kind of popup:

[![enter image description here](https://i.stack.imgur.com/MFbzz.png)](https://i.stack.imgur.com/MFbzz.png)

Then everything worked, now I want to renew this SSL cert. I followed this [instruction](https://letsencrypt.org/getting-started/) to renew my cert.

I tried:

**./certbot-auto renew --standalone**

```
=> Checking for new version...
Requesting root privileges to run certbot...
   /root/.local/share/letsencrypt/bin/letsencrypt renew --standalone
No renewals were attempted.

```

Or obtain the cert again **./certbot-auto certonly --standalone**

```
Failed authorization procedure. www.atoha.com (tls-sni-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Incorrect validation certificate for TLS-SNI-01 challenge. Requested ef39667c9d782884f8157f30f3e85e81.fb4436208f9bc7c8bdeb19356bb090f2.acme.invalid from 54.179.140.152:443. Received certificate containing 'www.my_domain.com'

IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: www.my_domain.com
   Type:   unauthorized
   Detail: Incorrect validation certificate for TLS-SNI-01 challenge.
   Requested ef39667c9d782884f8157f30f3e85e81.fb4436208f9bc7c8bdeb1935
   6bb090f2.acme.invalid from 54.179.140.152:443. Received certificate
   containing 'www.my_domain.com'

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A record(s) for that domain
   contain(s) the right IP address.

```

This means my cert was generated correctly before, for now I want to know **how to renew it**, since it is nearly expired!

Thanks!