Gitlab daemon crashing. Omnibus installation (Ubuntu 14.04)

Hi,

I followed the instructions for Gitlab pages, but it seems that the daemon is crashing all the time. The only information I could find regarding the crash is:

 2016-02-24_02:11:23.54988 2016/02/24 02:11:23 fork/exec .daemon.e4da6694574fdf55ab129e87b7a30d98: no such file or directory
 2016-02-24_02:11:24.65066 2016/02/24 02:11:24 GitLab Pages Daemon 0.2.0~beta.0.g4a2c680 (4a2c680)
 2016-02-24_02:11:24.65073 2016/02/24 02:11:24 URL: https://gitlab.com/gitlab-org/gitlab-pages
 2016-02-24_02:11:24.65155 2016/02/24 02:11:24 Running the daemon as unprivileged user (uid:998, gid: 998)...
 2016-02-24_02:11:24.67915 Start failed (0x7ffffe514a00,0xc8200af380)

My gitlab.rb configuration looks like this, but port 80 is dead:

pages_external_url 'http://tyto.cf'
nginx['listen_addresses'] = ['10.100.43.8']
pages_nginx['enable'] = false
gitlab_pages['external_http'] = '10.100.163.125:80'

I was trying just with

pages_external_url 'http://tyto.cf'

and I was getting a 502

Is there anything I should enable to debug this?