'ubuntu-minimal' was not downloadable

[Vitold]

during installation process appear error report.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.10
ProcVersionSignature: Ubuntu 3.16.0-77.99~14.04.1-generic 3.16.7-ckt27
Uname: Linux 3.16.0-77-generic i686
ApportVersion: 2.14.1-0ubuntu3.28
Architecture: i386
CrashDB: ubuntu
Date: Wed Sep 19 21:20:23 2018
InstallationDate: Installed on 2018-05-23 (118 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release i386 (20150218.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=uk
 PATH=(custom, no user)
 LANG=uk_UA.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2018-09-19 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2018-09-19 21:13:02.018166
 Log time: 2018-09-19 21:19:35.176409
 Log time: 2018-09-19 21:20:20.221450
 Log time: 2018-09-19 21:20:31.980494
VarLogDistupgradeTermlog:

[Juhani Numminen (jsonic)]

Please try again. This might be a download problem. From the Mainlog:

2018-09-19 21:20:20,222 ERROR No 'ubuntu-minimal' available/downloadable after sources.list rewrite+update
2018-09-19 21:20:20,222 ERROR 'ubuntu-minimal' was not downloadable

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]