Cannot distro upgrade my Ubuntu Studio 14.04 to 16.04. It is constant problem.

[Daniel]

COnstant error while trying to upgrade system from 14.10 LTS to 16.10 LTS.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.9
ProcVersionSignature: Ubuntu 3.13.0-132.181-generic 3.13.11-ckt39
Uname: Linux 3.13.0-132-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.25
Architecture: amd64
CrashDB: ubuntu
Date: Mon Oct 9 12:43:35 2017
InstallationDate: Installed on 2014-06-20 (1206 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=pl_PL
 TERM=xterm
 PATH=(custom, no user)
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2017-10-09 (0 days ago)
VarLogDistupgradeTermlog: