Nginx + Passenger and strange error after server move

Question

Nginx

RoR 1.9 was installed by a person according to the manual, then I installed nginx + passenger, this was installed on the server for the Redmine tracker, everything was installed according to the manual from the Redmine website. The server has moved, the admin says that only the IP addresses have changed and nothing else, everything that was in PHP works just as well as it worked before the move, but the redmine does not start, it gives such an error. In Rails, I'm a noob, honestly, I don't even know how to understand that he suddenly lost his Passenger.

here is a snippet of the error log from nginx
[ pid=57768 thr=17193406800 file=utils.rb:176 time=2013-07-29 18:20:51.724 ]: *** Exception IOError in PhusionPassenger::Rack::ApplicationSpawner (Connection closed ) (process 57768, thread #<Thread:0x000008019d22a0>):
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/app_process.rb:117:in `read_from_channel'
from /usr/local/lib/ruby/gems/1.9/ gems/passenger-3.0.19/lib/phusion_passenger/rack/application_spawner.rb:183:in `handle_spawn_application'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/ abstract_server.rb:357:in `server_main_loop'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
from /usr/ local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:180:in `start'
from /usr/local/lib/ruby/gems/1.9/gems/passenger- 3.0.19/lib/phusion_passenger/rack/application_spawner.rb:129:in `start'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:253:in `block (2 levels) in spawn_rack_application'
from /usr/local/lib/ ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/ lib/phusion_passenger/spawn_manager.rb:246:in `block in spawn_rack_application'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server_collection.rb:82:in ` block in synchronize'
from <internal:prelude>:10:in `synchronize'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:244:in `spawn_rack_application'
from /usr/local/lib/ruby/gems/1.9/ gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:137:in `spawn_application'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager. rb:275:in `handle_spawn_application'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
from /usr/local/ lib/ruby/gems/1.9/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
from /usr/local/lib/ruby/gems/1.9/gems/passenger-3.0. 19/helper-scripts/passenger-spawn-server:99:in `'

Answer 1

Run redmine under thin on a different port.

Answer 2

A cursory search gave the following results
code.google.com/p/phusion-passenger/issues/detail?id=590
stackoverflow.com/questions/13215707/passenger-the-application-spawner-server-exited-unexpectedly-connection-closed
www .redmine.org/boards/2/topics/29313

Answer 3

deleted