Libreoffice 6.4.5 not working on clicking

hi,
On my virtual machine It has Slackware 14.2 (64 bit) and multilib packages are installed from http://www.slackware.com/~alien/multilib/

I have installed Adobe Reader,VLC and it is working file in Slackware 14.2.Today I try to install Libreoffice 6.4.5 from AlienBob site i.e

https://alien.slackbook.org/blog/lib...14-2/#comments

In my home directory I craete a folder "libreoffice and then download these files.

Code:libreoffice-6.4.6-x86_64-1alien.txz
libreoffice-dict-en-6.4.6-x86_64-1alien.txz
libreoffice-l10n-en_GB-6.4.6-x86_64-1alien.txzFollowing are the steps which I have taken for Libreoffice .The installation process was smooth without any error.

Code:[root@slack142test software]$ cd libreoffice
[root@slack142test libreoffice]$ ls
libreoffice-6.4.6-x86_64-1alien.txz
libreoffice-dict-en-6.4.6-x86_64-1alien.txz
libreoffice-l10n-en_GB-6.4.6-x86_64-1alien.txz

[root@slack142test libreoffice]$ installpkg *.txz
Verifying package libreoffice-6.4.6-x86_64-1alien.txz.
Installing package libreoffice-6.4.6-x86_64-1alien.txz:
PACKAGE DESCRIPTION:
# libreoffice (free office suite)
#
# LibreOffice is an Open Source, community-developed, office
# productivity suite. It includes key desktop applications,
# such as a word processor, spreadsheet, presentation manager,
# formula editor and drawing program, with a user interface and
# feature set similar to other office suites. LibreOffice also
# works transparently with a variety of file formats, including
# Microsoft Office File Formats.
#
# libreoffice home: http://www.documentfoundation.org/
Executing install script for libreoffice-6.4.6-x86_64-1alien.txz.
Package libreoffice-6.4.6-x86_64-1alien.txz installed.

Verifying package libreoffice-dict-en-6.4.6-x86_64-1alien.txz.
Installing package libreoffice-dict-en-6.4.6-x86_64-1alien.txz:
PACKAGE DESCRIPTION:
# libreoffice-dict-en (LibreOffice 'en' dictionaries)
#
# This package contains the 'English' dictionary for LibreOffice.
#
# libreoffice home: http://www.libreoffice.org/
#
Package libreoffice-dict-en-6.4.6-x86_64-1alien.txz installed.

Verifying package libreoffice-l10n-en_GB-6.4.6-x86_64-1alien.txz.
Installing package libreoffice-l10n-en_GB-6.4.6-x86_64-1alien.txz:
PACKAGE DESCRIPTION:
# libreoffice-l10n-en_GB (LibreOffice en_GB localization)
#
# UK English language support for LibreOffice.
#
# libreoffice home: http://www.documentfoundation.org/
Executing install script for libreoffice-l10n-en_GB-6.4.6-x86_64-1alien.txz.
Package libreoffice-l10n-en_GB-6.4.6-x86_64-1alien.txz installed.

[root@slack142test libreoffice]$I try from a non root user as we as from root user accounts.With both users when I click on any icon of Libreoffice Math /Writer or Impress nothing happens.Please guide me is there any thing I am doing wrong or missing like dependencies or whatever ?

Thanks in advance for guiding me.
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