Error on line 145

Hi,
I just found that I had my index file changed on my website. Any idea on how this could have happened? I am using MODx Build 1.02.

Very old version with security issues, you should upgrade to 1.1

As Paulp has already mentioned, you are using an extremely old version of Evo

Evo 1.2 is due for release shortly, but if your site has possibly been hacked, I suggest upgrading to 1.1 and add the patch