Sorry for the delay in reply. We regret for the inconvenience caused to you.
Sir, I have tested Webuzo installation on Ubuntu 14.04 64-bit. The Webuzo install worked fine.
Sir, the error shown in above image must have occurred because of interrupted installation. Can you make sure you are properly connected to internet when Webuzo installer is running and the process is completed properly.
For now you can uninstall PHP from Apps menu, run the cron command (you can refer to our guide here: http://webuzo.com/wiki/Immediate_update) and then try to re-install the PHP version you are facing issue in.
If you still face the issue, can you please open a ticket here, so that we can resolve it for you:
http://softaculous.com/support/