No sound in ktuberling

In 14.06 ktubreling i had sound in greek language.
After upgrading to 16.04 no sound.

From the terminal:

When selecting an eye from the potato scene:

WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded

$ lsb_release -rd
Description: Ubuntu 16.04 LTS
Release: 16.04

$ sudo apt-cache policy ktuberling
ktuberling:
  Εγκατεστημένα: 4:15.12.3-0ubuntu1
  Υποψήφιο: 4:15.12.3-0ubuntu1
  Πίνακας Έκδοσης:
 *** 4:15.12.3-0ubuntu1 500
        500 http://gr.archive.ubuntu.com/ubuntu xenial/universe i386 Packages
        100 /var/lib/dpkg/status