Apache2 não executando trilhos

Question

Eu tenho um apache com meu vhost como:

<VirtualHost *:81>
  ServerName sandbox.myserver.com
  DocumentRoot /var/www/mysite/current/public

  <Directory />
    Options FollowSymLinks
    AllowOverride None
  </Directory>

  # Insert filter
  SetOutputFilter DEFLATE

  # Netscape 4.x has some problems...
  BrowserMatch ^Mozilla/4 gzip-only-text/html

  # Netscape 4.06-4.08 have some more problems
  BrowserMatch ^Mozilla/4\.0[678] no-gzip

  # MSIE masquerades as Netscape, but it is fine
  # BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

  # NOTE: Due to a bug in mod_setenvif up to Apache 2.0.48
  # the above regex won't work. You can use the following
  # workaround to get the desired effect:
  BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

  # Don't compress images
  SetEnvIfNoCase Request_URI \
  \.(?:gif|jpe?g|png)$ no-gzip dont-vary

  LogLevel error
  ErrorLog /var/log/apache2/vgm-error.log
  CustomLog /var/log/apache2/vgm-access.log combined

  # Turn on the rewrite engine
  RewriteEngine on


  # X-Request is for older rpm in notifications/vgm, X-Queue is for the newer gems
  RequestHeader set X-Request-Start "%t"
  RequestHeader set X-Queue-Start "%t"
</VirtualHost>

Portanto, eu tenho um projeto Rails nesse DocumentRoot , mas quando eu acesso meu Apache na porta 81, recebo um erro 503

Eu estou realmente perplexo e não sei o que fazer a partir daqui. Qualquer ajuda seria muito apreciada

EDITAR Resultados da execução de apache2ctl -S

VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:81                   sandbox.mysite.com (/etc/apache2/sites-enabled/mysite:1)
Syntax OK