Troubleshooting erlang software hasn't been day-to-day business for large varieties of system administrators, so some guidance on where to start troubleshooting run-time problems would be helpful.
This may include investigation on Guam apparently failing to filter groupware folders on erlang R16B (albeit no longer that important since we're now shipping 17.4), and SSL certificate (bundle) issues reported in T1065: Guam crashes frequently (might be SSL related).