Certbot stopped working on my CentOS 6 server

I use Let's Encrypt on my web server and I now get this error when I try to use Certbot, is there a way around this, or a way to do the certificates manually?

Quote:

To use Certbot on this operating system, packages from the SCL repository need to be installed.

I do realize this is an old OS and I do plan to migrate eventually but I'm just not ready for that yet as it's a huge undertaking as there is quite a lot on this server. I'm working on automating more stuff first so I can make the migration more smooth.

Is there a way to get it working to get me by in the meantime? I am guessing this error also means my certs are no longer being renewed as I get the error when I try to renew as well.