My British is extremely poor, please attempt to understand.

After i am running my sites in local host I recieve this error. I configure that website in SVN. My senior manoj also used my system that's not formatted please obvious my error.

In browser: Status: 500 Internal Server Error Content-Type: text/html

              <html><body><h1>500 Internal Server Error</h1></body></html>

In log file:

                  Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/templates/rescues/_trace (30.8ms)
Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/templates/rescues/_request_and_response (0.9ms)
Rendering /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/templates/rescues/layout.erb (internal_server_error)
/!\ FAILSAFE /!\  Mon Feb 21 17:04:18 +0530 2011
  Status: 500 Internal Server Error
  undefined local variable or method `manojkumar' for #<Mongrel::CGIWrapper:0x7f5435366038>
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/cgi.rb:66:in `header'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/cgi_process.rb:166:in `out'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:183:in `handle_request'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:123:in `dispatch_without_newrelic'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:122:in `synchronize'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:122:in `dispatch_without_newrelic'
    /home/kingston/workspace/CMS/vendor/plugins/newrelic_rpm/lib/new_relic/agent/instrumentation/dispatcher_instrumentation.rb:44:in `dispatch'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:39:in `dispatch'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:76:in `process'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `synchronize'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `process'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:159:in `process_client_without_proctitle'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:158:in `each'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:158:in `process_client_without_proctitle'
    /home/kingston/workspace/CMS/vendor/plugins/mongrel_proctitle/lib/mongrel_proctitle.rb:119:in `process_client'
    /home/kingston/workspace/CMS/vendor/plugins/mongrel_proctitle/lib/mongrel_proctitle.rb:34:in `request'
    /home/kingston/workspace/CMS/vendor/plugins/mongrel_proctitle/lib/mongrel_proctitle.rb:117:in `process_client'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `run_without_proctitle'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `initialize'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `new'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `run_without_proctitle'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:268:in `initialize'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:268:in `new'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:268:in `run_without_proctitle'
    /home/kingston/workspace/CMS/vendor/plugins/mongrel_proctitle/lib/mongrel_proctitle.rb:107:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:282:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:281:in `each'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:281:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:128:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/command.rb:212:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
    /usr/bin/mongrel_rails:19:in `load'
    /usr/bin/mongrel_rails:19

Thanks, kingston

You possess an undefined variable or method known as manojkumar. Check manojkumar is spelt properly and/or make certain it's a valid method.