error in server............

I m new to ROR and this is my first project. Its working fine in
localhost but when i uploaded it in server i face this error

http://www.copychops.com/

In the main page also when u click on this link....
About your application’s environment
u wil c error.......

and on next page.....

http://www.copychops.com/welcome/

Rails application failed to start properly

My all log files are blank. There is no error reporting...

Please help me to resolve this.........