Rails Application Problems

I’m quite new to the idea of Rails development, but I am having way too many problems trying to upload the Rails App onto the subdomain, and it not working properly.
I have tried to use FastCGI, which kept ending in a 500 Error.
Once I tried using Passenger, it kept clocking the website, like it will not load for anything. Even after I disable Passenger, it does not work at all.
It creates a new quickstart.html every time it reclocks.

Can anyone help with this issue?