installing behind unraid nginix docker

Hi Guys, Just got my install up (following one of the videos on youtube). trying to play with it and see what apps I want to add. I am able to access it by internal IP fine. I am not a linux person, so
When I try to put it behdind my nginix with personal wild card cert, and also when port forwarding 80/443 using another public IP I have, both do not seem to pass. DNS seems to resolve fine to external IP fine.

when trying to access thru my nginix, i get the following. is there any thing i am missing?

Oops! Page not found
404 Not Found
We could not find the page you were looking for.

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Version 2.1.31

this is the video I followed.
https://www.youtube.com/watch?v=jz98Xisezb4&ab_channel=FOSSDOM

Solved by removing folder and database and and re-extracting files and creating new db and completing install directly from fqdn