Redmine

When trying to delete an issue i receive the following error message:

NoMethodError in IssuesController#destroy

Application Trace
vendor/rails/activerecord/lib/active_record/base.rb:1672:in `method_missing'
vendor/plugins/redmine_backlogs/lib/issue_patch.rb:28:in `remove_item'
vendor/rails/activesupport/lib/active_support/callbacks.rb:173:in `send'
vendor/rails/activesupport/lib/active_support/callbacks.rb:173:in `evaluate_method'
vendor/rails/activesupport/lib/active_support/callbacks.rb:161:in `call'
vendor/rails/activesupport/lib/active_support/callbacks.rb:93:in `run'
vendor/rails/activesupport/lib/active_support/callbacks.rb:92:in `each'
vendor/rails/activesupport/lib/active_support/callbacks.rb:92:in `send'
vendor/rails/activesupport/lib/active_support/callbacks.rb:92:in `run'
vendor/rails/activesupport/lib/active_support/callbacks.rb:272:in `run_callbacks'
vendor/rails/activerecord/lib/active_record/callbacks.rb:298:in `callback'
vendor/rails/activerecord/lib/active_record/callbacks.rb:290:in `destroy_without_transactions'
vendor/rails/activerecord/lib/active_record/transactions.rb:102:in `destroy'
vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb:66:in `transaction'
vendor/rails/activerecord/lib/active_record/transactions.rb:79:in `transaction'
vendor/rails/activerecord/lib/active_record/transactions.rb:98:in `transaction'
vendor/rails/activerecord/lib/active_record/transactions.rb:102:in `destroy'
vendor/rails/actionpack/lib/action_view/helpers/capture_helper.rb:36:in `to_proc'
app/controllers/issues_controller.rb:318:in `each'
app/controllers/issues_controller.rb:318:in `destroy'

Running on windows XP pro, bitnami redmine stack 085