rails server doesn't work properly

[powi]

Everything was ok, until suddenly when I do a "rails server", I get this output: http://pastie.org/6603101.

This happened also on some applications before, suddenly.

I'm using RVM and I'm inside the apps root folder. I'm also using Rails edge.

$ ruby -v => ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-darwin11.4.2]

$ rails -v => Rails 4.0.0.beta1

$ which rails => /Users/xxxx/.rvm/gems/ruby-2.0.0-p0/bin/rails

Gemfile: http://pastie.org/6603419

PS: Also tried `bundle exec rails server`, same thing.

[powi]

Forgot! These are my .bash_profile & .profile files (I'm on Mountain Lion): http://pastie.org/6603536