Puppetdb module installation fails at postgresql

I am running on Puppet version 3.7.4, and Debian 7.8 Even on the simplest manifest I can use:

node testytest {
  class { 'puppetdb':}
}

Running puppet agent fails with this error:

==> default: Error: pick(): must receive at least one non empty value at /tmp/vagrant-puppet/modules-ab0b3668a962e5cf3e7012c01ca21465/postgresql/manifests/globals.pp:107 on node testytest