[V][RAILS] can't find command 'bundle'

Hello,

if I setup a complete new rails application and install bundler via "gem install bundler" and then I add the Website in Ajenti V, default setup. If I save it now, supervisor says:

can't find command 'bundle'

On which "User" do I have to install Bundler? Or this this Message has another reason?
Sorry for my bad english.

Thanks,
Atrox