If you got this theme for free, then you got it illegally or the site you got it from is distributing it illegally. This happens often with themes; someone purchases the theme, modifies the copyright/footer links and adds potentially malicious code, often for advertisements, into the theme, and distributes it for free on their site.
If you didn't pay for it, then you need to. That would also more than likely explain all the issues you're having.
Ignore this post if you did buy it.
