[Alumnionrails-errors] [ALI] login#password_request_send (NoMethodError) "undefined method `[]' for nil:NilClass"

[Application Error]

A NoMethodError occurred in login#password_request_send:

  undefined method `[]' for nil:NilClass
  [RAILS_ROOT]/app/controllers/login_controller.rb:87:in `password_request_send'

-------------------------------
Request:
-------------------------------

  * URL: http://ali.ba-ravensburg.de/login/password_request_send/
  * Parameters: {"action"=>"password_request_send", "controller"=>"login"}
  * Rails root: .

-------------------------------
Session:
-------------------------------

  * session id: "478ddbc440d632d0a1b91e602d35d96a"
  * data: {"flash"=>{}}

-------------------------------
Environment:
-------------------------------

  * CONTENT_LENGTH        : 0
  * DOCUMENT_ROOT         : /var/www/localhost/rails/alumnionrails/current/public
  * HTTP_ACCEPT           : */*
  * HTTP_ACCEPT_ENCODING  : gzip, x-gzip
  * HTTP_CLIENT_IP        : 74.6.23.173
  * HTTP_HOST             : ali.ba-ravensburg.de
  * HTTP_LLF_CACHE_CONTROL: max-stale=60
  * HTTP_USER_AGENT       : Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)
  * HTTP_X_FORWARDED_FOR  : 74.6.23.173
  * HTTP_YAHOOREMOTEIP    : 74.6.23.173
  * HTTP_YAHOOREMOTEIPSIG : Lo3pFScwbDjn4lvEAoZblw--~A
  * PATH_INFO             : /login/password_request_send/
  * QUERY_STRING          : 
  * REMOTE_ADDR           : 74.6.22.107
  * REMOTE_PORT           : 55596
  * REQUEST_METHOD        : GET
  * REQUEST_URI           : /login/password_request_send/
  * SCGI                  : 1
  * SCRIPT_NAME           : 
  * SERVER_ADDR           : 141.68.102.148
  * SERVER_ADMIN          : m at rceldevantier.de
  * SERVER_NAME           : ali.ba-ravensburg.de
  * SERVER_PORT           : 80
  * SERVER_PROTOCOL       : HTTP/1.0
  * SERVER_SOFTWARE       : Apache
  * UNIQUE_ID             : m7p1I41EZpQAABCkS2QAAAAH
  
  * Process: 24904
  * Server :

-------------------------------
Backtrace:
-------------------------------

  [RAILS_ROOT]/app/controllers/login_controller.rb:87:in `password_request_send'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:1095:in `send'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:1095:in `perform_action_without_filters'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:632:in `call_filter'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:634:in `call_filter'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:638:in `call_filter'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:438:in `call'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:637:in `call_filter'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:638:in `call_filter'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:449:in `call'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:637:in `call_filter'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:619:in `perform_action_without_benchmark'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue'
  /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/rescue.rb:83:in `perform_action'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in `send'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in `process_without_filters'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:624:in `process_without_session_management_support'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/session_management.rb:114:in `process'
  /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:330:in `process'
  /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/dispatcher.rb:41:in `dispatch'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/bin/scgi_service:23:in `process_request'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/bin/scgi_service:21:in `synchronize'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/bin/scgi_service:21:in `process_request'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:291:in `read_header'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:253:in `handle_client'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:234:in `initialize'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:234:in `new'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:234:in `handle_client'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:188:in `listen'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:186:in `initialize'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:186:in `new'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:186:in `listen'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:412:in `run'
  /usr/local/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/bin/scgi_service:61