I want to work Gitlab, But I can not connect in browser

I want to work Gitlab, But I can not connect in browser

I read Document
https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/installation.md
https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/databases.md
check
$ sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production
message
Checking Environment ...
Git configured for git user? ... yes
Has python2? ... yes
python2 is supported version? ... yes
Checking Environment ... Finished
Checking GitLab Shell ...
GitLab Shell version >= 1.7.0 ? ... OK (1.7.0)
Repo base directory exists? ... yes
Repo base directory is a symlink? ... no
Repo base owned by git:git? ... yes
Repo base access is drwxrws---? ... yes
post-receive hook up-to-date? ... yes
post-receive hooks in repos are links: ... can't check, you have no projects
Checking GitLab Shell ... Finished
Checking Sidekiq ...
Running? ... yes
Checking Sidekiq ... Finished
Checking GitLab ...
Database config exists? ... yes
Database is SQLite ... no
All migrations up? ... yes
GitLab config exists? ... yes
GitLab config outdated? ... no
Log directory writable? ... yes
Tmp directory writable? ... yes
Init script exists? ... yes
Init script up-to-date? ... yes
Projects have satellites? ... can't check, you have no projects
Redis version >= 2.0.0? ... yes
Your git bin path is "/usr/bin/git"
Git version >= 1.7.10 ? ... yes (1.8.1)
Checking GitLab ... Finished
But
But I can not connect in browser. What is wrong? How to debug?