Adding to last message, I can see that you are still using perl version 5.6.2 but the latest version 5.8.8 is already released. I suggest you to update the perl. Following are the steps to upgrade perl:
1. Download the cPanel perl installer
# wget
http://layer1.cpanel.net/perl588installer.tar.gz
2. Extract the archive
# tar zxvf perl588installer.tar.gz
3. Run the installer
# cd perl588installer
# ./install
4. Check perl modules
# /scripts/checkperlmodules
5. Force a cPanel update
# /scripts/upcp –force
6. Update perl information in user’s cPanel
# rm -rf /home/*/.cpanel;rm -rf /home/*/.cpanel-datastore
7. Check the actual new perl version
# perl -v
This should now output something like:
This is perl, v5.8.8 built for i686-linux