I found the problem. This may sound strange, but here it is.
I was gone outside. My brother thought I didn't have a license and he came here and INSTALLED A PIRATED LICENSE! But then I came back at the computer and saw that and... I uninstalled and put in my legal license! During the time I had the pirated license it showed that error. But now I put my legal license and it works. Don't get me as a pirate but, I didn't hack it! My brother did! Geez... Anyways, I'm using a legal license now. Everything's fine.
Cheers