Sidekiq not running after upgrade to 8.14.2

I'm running gitlab from gitlab_gitlab-ce repository on CentOS 6.8, today morning i've launched upgrade & my machine unfortunately stuck and Gitlab is not working since then, even yum-complete-transaction did not helped.

Problem is in sidekiq-cron, see /var/log/gitlab/sidekiq/current:

2016-12-02_07:12:31.00788 bundler: failed to load command: sidekiq (/opt/gitlab/embedded/service/gem/ruby/2.3.0/bin/sidekiq) 2016-12-02_07:12:31.00792 Bundler::GemNotFound: Could not find sidekiq-cron-0.4.4 in any of the sources 2016-12-02_07:12:31.00792 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/spec_set.rb:95:in block in materialize' 2016-12-02_07:12:31.00792 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/spec_set.rb:88:in map!' 2016-12-02_07:12:31.00792 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/spec_set.rb:88:in materialize' 2016-12-02_07:12:31.00792 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/definition.rb:174:in specs' 2016-12-02_07:12:31.00793 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/definition.rb:233:in specs_for' 2016-12-02_07:12:31.00793 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/definition.rb:222:in requested_specs' 2016-12-02_07:12:31.00793 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:118:in block in definition_method' 2016-12-02_07:12:31.00793 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:19:in setup' 2016-12-02_07:12:31.00793 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler.rb:99:in setup' 2016-12-02_07:12:31.00793 /opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/setup.rb:20:in <top (required)>' 2016-12-02_07:12:31.00794 /opt/gitlab/embedded/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require' 2016-12-02_07:12:31.00794 /opt/gitlab/embedded/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require'

When i launched yum reinstall gitlab-ce, it crashed with same error.

Could you please give me some hint how to fix this?

Thank you