Hi, Upgraded to Rails 2.3.2 and Passenger 2.2.4 on Ubuntu hardy slice at slicehost with Apache2

I'm getting this same above discussed error in my Apache error.log of system /var/logs/apache2/

[ pid=4249 file=ext/apache2/Hooks.cpp:638 time=2009-07-04
11:47:32.752 ]:
  No data received from the backend application (process 4383) within
45000 msec. Either the backend application is frozen, or your TimeOut
value of 45 seconds is too low. Please check whether your application
is frozen, or increase the value of the TimeOut configuration
directive.
*** Exception Errno::EPIPE in Passenger RequestHandler (Broken pipe)
(process 4391):
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/rack/request_handler.rb:93:in `write'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/rack/request_handler.rb:93:in `process_request'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_request_handler.rb:206:in `main_loop'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/railz/application_spawner.rb:376:in
`start_request_handler'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/railz/application_spawner.rb:334:in
`handle_spawn_application'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/utils.rb:182:in `safe_fork'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/railz/application_spawner.rb:332:in
`handle_spawn_application'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server.rb:351:in `__send__'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server.rb:351:in `main_loop'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server.rb:195:in `start_synchronously'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server.rb:162:in `start'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/railz/application_spawner.rb:213:in `start'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/spawn_manager.rb:261:in `spawn_rails_application'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server_collection.rb:126:in `lookup_or_add'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/spawn_manager.rb:255:in `spawn_rails_application'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server_collection.rb:80:in `synchronize'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/spawn_manager.rb:254:in `spawn_rails_application'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/spawn_manager.rb:153:in `spawn_application'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/spawn_manager.rb:286:in `handle_spawn_application'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server.rb:351:in `__send__'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server.rb:351:in `main_loop'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/
phusion_passenger/abstract_server.rb:195:in `start_synchronously'
        from /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/bin/passenger-spawn-
server:61
*** Exception Errno::EPIPE in Passenger RequestHandler (Broken pipe)
(process 4383):

and these too.

pid=4362 file=ext/apache2/Hooks.cpp:638 time=2009-07-04
11:55:19.251 ]:
  No data received from the backend application (process 4383) within
45000 msec. Either the backend application is frozen, or your TimeOut
value of 45 seconds is too low. Please check whether your application
is frozen, or increase the value of the TimeOut configuration
directive.
[ pid=4298 file=ext/apache2/Hooks.cpp:638 time=2009-07-04
11:55:19.255 ]:
  No data received from the backend application (process 4252) within
45000 msec. Either the backend application is frozen, or your TimeOut
value of 45 seconds is too low. Please check whether your application
is frozen, or increase the value of the TimeOut configuration
directive.
[Sat Jul 04 11:55:19 2009] [error] [client 86.96.226.13] Premature end
of script headers: 41, referer: http://domain.com/
[ pid=4373 file=ext/apache2/Hooks.cpp:638 time=2009-07-04
11:55:19.559 ]:

Its getting me mad and on the browser, sometimes its show and when refreshed, Application Error 500 shows up in frequent basis. any directions??