Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: pusher.pynlab.com
I ran this command: certbot --nginx -d pusher.pynlab.com --preferred-challenges http
It produced this output:You have an existing certificate that has exactly the same domains or certificate name you requested and isn’t close to expiry.
Deploying Certificate to VirtualHost /etc/nginx/conf.d/pusher.conf
nginx: [emerg] could not build server_names_hash, you should increase server_names_hash_bucket_size: 32
Rolling back to previous server configuration…
My web server is (include version): nginx version: nginx/1.12.2
The operating system my web server runs on is (include version): CentOS Linux 7 (Core)
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don’t know):yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):no
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you’re using Certbot):certbot 0.29.1