In the page footer there is: Subscription Asset Manager Version: Unknown Moreover in the thin.5XXX.log there is: /usr/lib/ruby/gems/1.8/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239: command not found: git rev-parse --short HEAD as we try to access "git" binary to get the githash. One line fix, very easy.
Pushed upstream: 961c374 791268 - SAM does not contain valid version