package libclamunrar7 (not installed) failed to install/upgrade: Versuch, »/usr/lib/libclamunrar_iface.la« zu überschreiben, welches auch in Paket libclamunrar6 0.96.4-1ubuntu1 ist

I try to install application with synaptic and no idea about such a problem, please help me

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libclamunrar7 (not installed)
ProcVersionSignature: Ubuntu 3.13.0-129.178-generic 3.13.11-ckt39
Uname: Linux 3.13.0-129-generic x86_64
NonfreeKernelModules: nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.14.1-0ubuntu3.25
Architecture: amd64
Date: Fri Sep 15 11:08:18 2017
DuplicateSignature: package:libclamunrar7:(not installed):Versuch, »/usr/lib/libclamunrar_iface.la« zu überschreiben, welches auch in Paket libclamunrar6 0.96.4-1ubuntu1 ist
ErrorMessage: Versuch, »/usr/lib/libclamunrar_iface.la« zu überschreiben, welches auch in Paket libclamunrar6 0.96.4-1ubuntu1 ist
InstallationDate: Installed on 2017-08-24 (23 days ago)
InstallationMedia: Kubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.17
SourcePackage: libclamunrar
Title: package libclamunrar7 (not installed) failed to install/upgrade: Versuch, »/usr/lib/libclamunrar_iface.la« zu überschreiben, welches auch in Paket libclamunrar6 0.96.4-1ubuntu1 ist
UpgradeStatus: No upgrade log present (probably fresh install)