Sidekiq doesn't run

Created by: aminnaggar

After runnung sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

Everything goes well except for Sidekiq, and get

Running? ... no
  Try fixing it:
  sudo -u git -H bundle exec rake sidekiq:start RAILS_ENV=production
  For more information see:
  doc/install/installation.md in section "Install Init Script"
  see log/sidekiq.log for possible errors
  Please fix the error above and rerun the checks.

Checking Sidekiq ... Finished

I followed it's instruction and ran

  sudo -u git -H bundle exec rake sidekiq:start RAILS_ENV=production

Which doesn't return anything

Then I ran cat log/sidekiq.log | grep error which returned

Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)
Error connecting to Redis on localhost:6379 (ECONNREFUSED)

What do I do!?