It *looks* like there are duplicative calls to `Sidekiq.configure_server` in the initializer. https://github.com/sul-dlss/preservation_catalog/blob/862e76e8a35077884e94fb366269ba459993446d/config/initializers/sidekiq.rb#L6 https://github.com/sul-dlss/preservation_catalog/blob/862e76e8a35077884e94fb366269ba459993446d/config/initializers/sidekiq.rb#L12 I'm guessing one of them was expected to be commented out or removed?