Need Help to setup a Rails Application

I'm try to run a rails application into the subdomain fronteira.casetec.com.br.

But an getting the error:

Error message:

Could not find activesupport-3.0.5 in any of the sources (Bundler::GemNotFound)

But when a run the command bundle install | grep active I get:

root@li268-202:/railsapp/fronteira# bundle install | grep active

Using activesupport (3.0.5)

Using activemodel (3.0.5)

Using activerecord (3.0.5)

Using activeresource (3.0.5)

And when I try gem list | grep active the result is:

root@li268-202:/railsapp/fronteira# gem list | grep active

activemerchant (1.15.0, 1.14.0)

activemodel (3.0.7, 3.0.5, 3.0.3)

activerecord (3.0.7, 3.0.5, 3.0.3, 2.3.5)

activeresource (3.0.7, 3.0.5, 3.0.3, 2.3.5)

activesupport (3.0.7, 3.0.5, 3.0.3, 2.3.5)

Please, I'm not used to manage Linux and need help to get this issue resolved.

Regards