package libreoffice-core 1:3.4.4-0ubuntu2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

[Harison]

I was updating the system, then this error occurred.
Since then I get error notification system on every boot and system clock disappeared.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libreoffice-core 1:3.4.4-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-8.15-generic-pae 3.2.0
Uname: Linux 3.2.0-8-generic-pae i686
ApportVersion: 1.90-0ubuntu1
Architecture: i386
Date: Fri Jan 13 00:29:07 2012
DpkgTerminalLog:
 Preparing to replace libreoffice-core 1:3.4.4-0ubuntu2 (using .../libreoffice-core_1%3a3.5.0~beta2-2ubuntu2_i386.deb) ...
 rmdir: failed to remove `usr/lib/libreoffice/basis3.4/program/': Directory not empty
 dpkg: error processing /var/cache/apt/archives/libreoffice-core_1%3a3.5.0~beta2-2ubuntu2_i386.deb (--unpack):
  subprocess new pre-installation script returned error exit status 1
ErrorMessage: subprocess new pre-installation script returned error exit status 1
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
SourcePackage: libreoffice
Title: package libreoffice-core 1:3.4.4-0ubuntu2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-01-12 (0 days ago)

[Harison (harison-advanced)]

Libreoffice won't open