Error while trying to configure TLS/SSL configuration on Nginx web server(Ubuntu)

Good day, Im trying to configure SSL on our librenms server. Found these articles on the librenms documentation: https://docs.librenms.org/Support/SSL-Configuration/ and https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-16-04

After editing out the librenms.conf with this command " nano /etc/nginx/conf.d/librenms.conf". Whenever I verify my nginx for possible syntax error with this command “sudo nginx -t”, I’m getting this error:

" [emerg] open() “/etc/nginx/snippets/ssl-mysitename.com.conf” failed (2: No such file or directory) in /etc/nginx/conf.d/librenms.conf:11 nginx: configuration file /etc/nginx/nginx.conf test failed "

Hoping for your feedbacks, I’m just a newbie with this kind of field. Thanks, Be safe everyone!