Nginx Server unable to start up due to issues with conf?

Last week I had setup Nginx fully and as far as I knew it was working, until I tried using gunicorn which I had no success with Gunicorn in the end. Then I noticed issues with DOSS attacks coming in and i am unsure if somethings happened to cause my Nginx sever from starting up.

I have accessed both files and they seem to be okay but the main nginx.conf under sites enabled will not save for some reason and file also appears empty?

root@ubuntu-vpc-do-moon:~# /etc/init.d/nginx status ● nginx.service - A high performance web server and a reverse proxy server Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Mon 2019-11-04 10:54:44 UTC; 1min 43s ago Docs: man:nginx(8) Process: 2550 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=1/FAILURE)

Nov 04 10:54:44 ubuntu-vpc-do-moon systemd[1]: Starting A high performance web server and a reverse proxy server… Nov 04 10:54:44 ubuntu-vpc-do-moon nginx[2550]: nginx: [emerg] open() “/etc/nginx/sites-enabled/nginx.conf” failed (2: No such file or directory) in /etc/nginx/nginx.conf:62 Nov 04 10:54:44 ubuntu-vpc-do-moon nginx[2550]: nginx: configuration file /etc/nginx/nginx.conf test failed Nov 04 10:54:44 ubuntu-vpc-do-moon systemd[1]: nginx.service: Control process exited, code=exited status=1 Nov 04 10:54:44 ubuntu-vpc-do-moon systemd[1]: nginx.service: Failed with result ‘exit-code’. Nov 04 10:54:44 ubuntu-vpc-do-moon systemd[1]: Failed to start A high performance web server and a reverse proxy server.

Any information would be much appreciated