Hello,

I could suggest following the steps here on how to troubleshoot common Nginx and Apache problems:

https://www.digitalocean.com/community/questions/how-to-troubleshoot-common-nginx-issues-on-linux-server

https://www.digitalocean.com/community/questions/how-to-troubleshoot-common-apache-issues-on-linux-server

If you are still unsure at the end, feel free to share the logs here so that I could try to advise you further.

Regards,
Bobby