Started PATCH "/issues/5575" for 192.168.105.112 at 2018-02-12 09:33:30 +0000
Processing by IssuesController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"Sx+CM1oMTdaWKDuYhDXuGufDolv/GamDQgPzL0Ils2At1mISA1h8+TVmRAFlAayOresu/bfpPJXSgozSRwXM+Q==", "form_update_triggered_by"=>"", "issue"=>{"is_private"=>"0", "project_id"=>"42", "tracker_id"=>"9", "subject"=>"Fix liveplot (again)", "description"=>"Testing with MZ resulted in a list of things to fix (who could've expected...).", "status_id"=>"16", "assigned_to_id"=>"84", "fixed_version_id"=>"", "parent_issue_id"=>"", "estimated_hours"=>"", "custom_field_values"=>{"29"=>[""], "32"=>"0", "33"=>[""]}, "sprint_id"=>"5", "pending_effort"=>"0.0", "notes"=>"", "lock_version"=>"3"}, "time_entry"=>{"hours"=>"", "activity_id"=>"", "comments"=>""}, "last_journal_id"=>"19744", "commit"=>"Submit", "prev_issue_id"=>"5576", "next_issue_id"=>"5559", "issue_position"=>"161", "issue_count"=>"419", "id"=>"5575"}
  Current user: i.z (id=92)
Completed 500 Internal Server Error in 284ms (ActiveRecord: 40.9ms)

NoMethodError (undefined method `>' for nil:NilClass):
  plugins/scrum/lib/scrum/issue_patch.rb:415:in `block in max_position'
  plugins/scrum/lib/scrum/issue_patch.rb:414:in `each'
  plugins/scrum/lib/scrum/issue_patch.rb:414:in `max_position'
  plugins/scrum/lib/scrum/issue_patch.rb:427:in `move_issue_to_the_end_of_the_sprint'
  plugins/scrum/lib/scrum/issue_patch.rb:344:in `update_position'
  app/models/issue.rb:210:in `create_or_update'
  app/controllers/issues_controller.rb:527:in `block in save_issue_with_child_records'
  app/controllers/issues_controller.rb:515:in `save_issue_with_child_records'
  app/controllers/issues_controller.rb:184:in `update'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'
  
Started POST "/scrum/5559/move_to_last_sprint" for 192.168.100.2 at 2018-02-12 12:01:01 +0000
Processing by ScrumController#move_to_last_sprint as JS
  Parameters: {"pbi_id"=>"5559"}
  Current user: j.s (id=31)
Exception: #<NoMethodError: undefined method `>' for nil:NilClass>
  Rendered plugins/scrum/app/views/scrum/move_to_last_sprint.js.erb (0.3ms)
Completed 200 OK in 98ms (Views: 1.7ms | ActiveRecord: 21.0ms)

Started PATCH "/issues/5546" for 192.168.100.2 at 2018-02-12 12:09:21 +0000
Processing by IssuesController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"v/zKsquTexJSP9AH1EaNsuhvqdhZ02ZCJAyTAmYnf23FxbJV+DwsqzK1XKE9IUsMXsQSVxHrmqCuvPSEYWahAA==", "form_update_triggered_by"=>"", "issue"=>{"is_private"=>"0", "project_id"=>"33", "tracker_id"=>"1", "subject"=>"Proposal - Specific discipline (Wayforlight)", "description"=>"Specific discipline should be mapped from WFL xml form to our Proposal", "status_id"=>"1", "priority_id"=>"5", "assigned_to_id"=>"98", "fixed_version_id"=>"", "parent_issue_id"=>"", "start_date"=>"2017-09-11", "due_date"=>"", "estimated_hours"=>"", "done_ratio"=>"0", "custom_field_values"=>{"29"=>[""], "30"=>[""], "32"=>"1", "33"=>[""], "37"=>""}, "sprint_id"=>"17", "pending_effort"=>"0.0", "notes"=>"", "lock_version"=>"35"}, "was_default_status"=>"1", "time_entry"=>{"hours"=>"", "activity_id"=>"", "comments"=>""}, "last_journal_id"=>"20373", "commit"=>"Submit", "prev_issue_id"=>"5547", "next_issue_id"=>"5545", "issue_position"=>"18", "issue_count"=>"40", "id"=>"5546"}
  Current user: j.s (id=31)
Completed 500 Internal Server Error in 304ms (ActiveRecord: 46.9ms)

NoMethodError (undefined method `>' for nil:NilClass):
  plugins/scrum/lib/scrum/issue_patch.rb:415:in `block in max_position'
  plugins/scrum/lib/scrum/issue_patch.rb:414:in `each'
  plugins/scrum/lib/scrum/issue_patch.rb:414:in `max_position'
  plugins/scrum/lib/scrum/issue_patch.rb:427:in `move_issue_to_the_end_of_the_sprint'
  plugins/scrum/lib/scrum/issue_patch.rb:349:in `update_position'
  app/models/issue.rb:210:in `create_or_update'
  app/controllers/issues_controller.rb:527:in `block in save_issue_with_child_records'
  app/controllers/issues_controller.rb:515:in `save_issue_with_child_records'
  app/controllers/issues_controller.rb:184:in `update'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'