Thanks for the reply guys! Since I don't have the time to troubleshoot it more. I just intsructed my VPS company to downgrade the php version into its original state before I upgraded into Piwik 2.0.1. Php 3.5.2 did create alot of errors for my sites specially the most important functions.
So I just abondoned the upgraded installation and started a new one with Piwik 1.12
So I just abondoned the upgraded installation and started a new one with Piwik 1.12