After update from 8.6 to 8.9.6 imported repos throw 500 error

Hello guys, i am facing a rather strange problem with my Gitlab CE version. I run it on the Ubuntu Server 14.04 and recently updated it via apt-get deb package from 8.6 to 8.9.6 I have a bunch of imported (from bitbucket.org) repos and after update they stopped working throwing me 500 error. All repos created from scratch inside the gitlab work fine. This happens when you try to load the index page of each repo. If you go to the edit page - it works, if you go to activity (repository, pipelines, graphs, issues etc) or whatever else tab - it works. this is what i have at gitlab-ctl tail

==> /var/log/gitlab/gitlab-rails/production.log <== Started GET "/appstockus/spartakemails" for 178.76.217.96 at 2016-07-18 07:30:00 -0400 Processing by ProjectsController#show as HTML Parameters: {"namespace_id"=>"appstockus", "id"=>"spartakemails"} Completed 500 Internal Server Error in 156ms (ActiveRecord: 8.1ms)

OpenSSL::Cipher::CipherError (iv length too short): app/models/project.rb:456:in import_url' app/models/project.rb:486:in external_import?' app/models/project.rb:478:in import?' app/models/project.rb:494:in import_in_progress?' app/controllers/projects_controller.rb:93:in show' lib/gitlab/middleware/go.rb:16:in call'

==> /var/log/gitlab/gitlab-workhorse/current <== 2016-07-18_11:30:00.28651 2016/07/18 07:30:00 ErrorPage: serving predefined error page: 500 2016-07-18_11:30:00.28801 gitlab.appstockus.com @ - - [2016-07-18 07:30:00.051467029 -0400 EDT] "GET /appstockus/spartakemails HTTP/1.1" 500 2205 "MY_GITLAB_URL/groups/appstockus" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.75 Safari/537.36" 0.235746

https://gitlab.com/gitlab-org/gitlab-ce/issues/19755

https://gitlab.com/gitlab-org/gitlab-ce/issues/19073#note_12712670

/cc @jameslopez

Thanks! Closing this as a duplicate of https://gitlab.com/gitlab-org/gitlab-ce/issues/19073

Status changed to closed

Thanks guys, it worked