Redmine

Hello I'm trying to install redmine on a server with centos 5.8 with cpanel but upon entering the browser I get the following error:

Ruby on Rails application could not be started
A source file that the application requires, is missing.
It is possible that you didn't upload your application files correctly. Please check whether all your application files are uploaded.
A required library may not installed. Please install all libraries that this application requires.
Further information about the error may have been written to the application's log file. Please check it in order to analyse the problem.
Error message:
no such file to load -- bundler
Exception class:
LoadError
Application root:
/home/escaleno/redmine
Backtrace:
#    File    Line    Location
0    /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb    36    in `gem_original_require'
1    /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb    36    in `require'
2    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/utils.rb    325    in `prepare_app_process'
3    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/classic_rails/application_spawner.rb    176    in `initialize_server'
4    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/utils.rb    572    in `report_app_init_status'
5    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/classic_rails/application_spawner.rb    174    in `initialize_server'
6    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server.rb    204    in `start_synchronously'
7    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server.rb    180    in `start'
8    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/classic_rails/application_spawner.rb    149    in `start'
9    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/spawn_manager.rb    219    in `spawn_rails_application'
10    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server_collection.rb    132    in `lookup_or_add'
11    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/spawn_manager.rb    214    in `spawn_rails_application'
12    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server_collection.rb    82    in `synchronize'
13    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server_collection.rb    79    in `synchronize'
14    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/spawn_manager.rb    213    in `spawn_rails_application'
15    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/spawn_manager.rb    132    in `spawn_application'
16    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/spawn_manager.rb    275    in `handle_spawn_application'
17    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server.rb    357    in `__send__'
18    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server.rb    357    in `server_main_loop'
19    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/lib/phusion_passenger/abstract_server.rb    206    in `start_synchronously'
20    /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.13/helper-scripts/passenger-spawn-server    99    

The output of the command gem list is:

*** LOCAL GEMS ***

actionmailer (3.2.6, 2.3.14)
actionpack (3.2.6, 2.3.14)
activemodel (3.2.6)
activerecord (3.2.6, 2.3.14)
activeresource (3.2.6, 2.3.14)
activesupport (3.2.6, 2.3.14)
arel (3.0.2)
builder (3.0.0)
bundler (1.1.5, 1.1.4)
cgi_multipart_eof_fix (2.5.0)
coderay (1.0.7, 0.9.8)
daemon_controller (1.0.0)
daemons (1.1.8)
erubis (2.7.0)
fastercsv (1.5.5)
fastthread (1.0.7)
gem_plugin (0.2.3)
hike (1.2.1)
hoe (3.0.6)
i18n (0.6.0, 0.4.2)
journey (1.0.4)
jquery-rails (2.0.3)
json (1.7.5)
mail (2.4.4)
mime-types (1.19)
mongrel (1.1.5)
multi_json (1.3.6)
mysql (2.8.1)
net-ldap (0.3.1)
passenger (3.0.15, 3.0.13)
polyglot (0.3.3)
prototype-rails (3.2.1)
rack (1.4.1, 1.1.3, 1.1.0)
rack-cache (1.2)
rack-openid (1.3.1)
rack-ssl (1.3.2)
rack-test (0.6.1)
rails (3.2.6, 2.3.14)
railties (3.2.6)
rake (0.9.2.2, 0.8.3)
rdoc (3.12)
RedCloth (4.2.9)
ruby-openid (2.1.8)
rubygems-update (1.8.24)
rubytree (0.5.2)
sprockets (2.1.3)
sqlite3 (1.3.6)
thor (0.16.0)
tilt (1.3.3)
treetop (1.4.10)
tzinfo (0.3.33)

I tried with version 1.3.1, 1.4 and 2.0 and all I get the same error. The strange thing is that I can access through the command redmine:

ruby script/server webrick-e production