Accessing Nextcloud Server from internet

Hi all,

I am having an issue regarding accessing my Nextcloud server from the internet, I have set up the nextcloud server using UCS on VMware Workstation. I have opened port 80 on my router. I am able to access the UCS servers main page and all its components from the internet using my domain but when I click on the Nextcloud symbol on the homepage it says “The requested URL was not found on this server.” I have tried everything to fix this like going into the portal settings and adding the urls of my domain to access it. I am able to access the nextcloud server internally aswell.

If anyone could shed some light to why this is happening I would be much obliged!