Hi all again,
finally this afternoon I got to recover my kodi installation despite I run apt-get upgrade. Kodi version is 16.1 right now. I think there was a problem while it was updating the version two days ago. Now I have scheduled a weekly backup and have exported my movies database.
Having run that command your system is likely to have many more problems particularly with future updates, it is recommended that you re-install.
If you run
apt-get upgrade, your system will be in a partial state. The current update may succeed, but future ones will likely not.
apt-get upgrade has not been recommended by Debian or Ubuntu since 2009. Unfortunately many tutorials still (incorrectly) offer this advice