Need help: Can't login after upgrading 7.9.3 to 7.12.2

I can access gitlab UI from browser that remember my sign in but not form a new browser or if I log out.

The error is

Started POST “/users/sign_in” for 127.0.0.1 at 2015-07-05 18:01:50 -0400
Processing by SessionsController#create as HTML
Parameters: {“utf8”=>“✓”, “authenticity_token”=>"[FILTERED]", “user”=>{“login”=>“xxxxx”, “password”=>"[FILTERED]", “remember_me”=>“0”}}
Completed 500 Internal Server Error in 5ms (ActiveRecord: 1.8ms)
BCrypt::Errors::InvalidHash (invalid hash):
app/controllers/application_controller.rb:59:in `authenticate_user!’

Hope it is something simple could you please give me a hand with troubleshooting or I will have to roll back the whole upgrade :frowning:

Thanks
alex

looks like it has been resolved. i guess stop and start fixed it. which is strange because I ran reconfigure after yum install and then once again after I discovered the issue but it did not help while stopping and starting explicitly did.