package moodle 2.5.4-1ubuntu1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1

While I was upgraing from 12.04 to 14.04, moole failed to install.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: moodle
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic i686
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: i386
Date: Mon Aug 18 22:29:36 2014
DuplicateSignature: package:moodle:2.5.4-1ubuntu1:ErrorMessage: subprocess installed post-installation script returned error exit status 1
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2010-02-01 (1659 days ago)
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
PackageArchitecture: all
SourcePackage: moodle
Title: package moodle 2.5.4-1ubuntu1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to trusty on 2014-08-18 (0 days ago)