A lot of PHP errors. Please help!

Hello guys,

We’ve bought this theme and installed it. The theme is great and i am a developer so i could easily learn how to play with it.

But the problem is that i have A LOT of PHP errors in different places. Some i know how to solve and i did, but others i don’t want to mess with because i don’t know how it works and i’m afraid of breaking something i don’t see.

Here is an example: Page Site

There are a lot of erros…variables that don’t exist etc…is this normal? How can i solve this?

Please help.
Regards