Started GET "/redmine/admin/plugins" for 80.254.150.75 at 2017-05-12 15:11:31 +0200
Processing by AdminController#plugins as HTML
  Current user: L0471566 (id=1)
  Rendered admin/plugins.html.erb within layouts/admin (0.0ms)
  Rendered admin/_menu.html.erb (15.6ms)
  Rendered plugins/scrum/app/views/scrum_hooks/_head.html.erb (0.0ms)
  Rendered plugins/scrum/app/views/scrum_hooks/_scrum_tips.html.erb (0.0ms)
  Rendered layouts/base.html.erb (0.0ms)
Completed 200 OK in 31ms (Views: 16.7ms | ActiveRecord: 15.6ms)
Started GET "/redmine/settings/plugin/scrum" for 80.254.150.75 at 2017-05-12 15:11:33 +0200
Processing by SettingsController#plugin as HTML
  Parameters: {"id"=>"scrum"}
  Current user: L0471566 (id=1)
  Rendered plugins/scrum/app/views/settings/_license.js.erb (0.0ms)
  Rendered plugins/scrum/app/views/settings/_license.html.erb (0.0ms)
  Rendered plugins/scrum/app/views/settings/_scrum_settings.html.erb (46.9ms)
  Rendered settings/plugin.html.erb within layouts/admin (46.9ms)
Completed 500 Internal Server Error in 63ms (ActiveRecord: 15.7ms)

ActiveRecord::RecordNotFound (Couldn't find CustomField with 'id'=9):
  plugins/scrum/app/views/settings/_scrum_settings.html.erb:208:in `block (2 levels) in _plugins_scrum_app_views_settings__scrum_settings_html_erb___1167737372_93303800'
  plugins/scrum/app/views/settings/_scrum_settings.html.erb:208:in `collect'
  plugins/scrum/app/views/settings/_scrum_settings.html.erb:208:in `block in _plugins_scrum_app_views_settings__scrum_settings_html_erb___1167737372_93303800'
  plugins/scrum/app/views/settings/_scrum_settings.html.erb:197:in `_plugins_scrum_app_views_settings__scrum_settings_html_erb___1167737372_93303800'
  app/views/settings/plugin.html.erb:6:in `block in _app_views_settings_plugin_html_erb___914797019_92606000'
  app/views/settings/plugin.html.erb:4:in `_app_views_settings_plugin_html_erb___914797019_92606000'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'


Started GET "/redmine/" for 80.254.150.75 at 2017-05-12 15:17:34 +0200
Processing by WelcomeController#index as HTML
  Current user: L0471566 (id=1)
  Rendered welcome/index.html.erb within layouts/base (0.0ms)
  Rendered plugins/scrum/app/views/scrum_hooks/_head.html.erb (0.0ms)
  Rendered plugins/scrum/app/views/scrum_hooks/_scrum_tips.html.erb (15.6ms)
Completed 200 OK in 31ms (Views: 13.8ms | ActiveRecord: 0.0ms)
Started GET "/redmine/projects/grant?jump=welcome" for 80.254.150.75 at 2017-05-12 15:17:37 +0200
Processing by ProjectsController#show as HTML
  Parameters: {"jump"=>"welcome", "id"=>"grant"}
  Current user: L0471566 (id=1)
  Rendered projects/_members_box.html.erb (15.6ms)
  Rendered plugins/scrum/app/views/scrum_hooks/projects/_show_sidebar.html.erb (0.0ms)
  Rendered projects/_sidebar.html.erb (0.0ms)
  Rendered projects/show.html.erb within layouts/base (15.6ms)
  Rendered plugins/scrum/app/views/scrum_hooks/_head.html.erb (0.0ms)
  Rendered plugins/scrum/app/views/scrum_hooks/_scrum_tips.html.erb (0.0ms)
Completed 200 OK in 78ms (Views: 38.2ms | ActiveRecord: 0.0ms)
Started GET "/redmine/projects/grant/scrum/stats" for 80.254.150.75 at 2017-05-12 15:17:38 +0200
Processing by ScrumController#stats as HTML
  Parameters: {"project_id"=>"grant"}
  Current user: L0471566 (id=1)
Completed 500 Internal Server Error in 26095ms (ActiveRecord: 3061.0ms)

ArgumentError (comparison of Date with nil failed):
  plugins/scrum/app/models/sprint.rb:106:in `>='
  plugins/scrum/app/models/sprint.rb:106:in `block in time_entries_by_activity'
  plugins/scrum/app/models/sprint.rb:104:in `each'
  plugins/scrum/app/models/sprint.rb:104:in `time_entries_by_activity'
  plugins/scrum/lib/scrum/project_patch.rb:120:in `block in sps_by_pbi_field'
  plugins/scrum/lib/scrum/project_patch.rb:119:in `sps_by_pbi_field'
  plugins/scrum/lib/scrum/project_patch.rb:85:in `effort_by_activity'
  plugins/scrum/app/controllers/scrum_controller.rb:260:in `stats'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'