My site's been hacked, help please.

Hey, guys. My website is http://www.alwayscrispy.com I noticed when someone posted a link to the website on our facebook page after I clicked it that I was being redirected to a site called “http://notfound.iownyour.org/” when I enter in the name manually it always leads me to my site.
EDIT: I tested it out on other methods like on this post to see if the link would redirect to another site and it didn’t, same with google searchs. It’s just facebook that’s doing it now, nothing else.

Now I did search on this website before I posted this, however I am unable to do some of the solutions that were posted in those threads. First, I can’t access certain files like my “wp-config” it denies me from editing it or even downloading it. It’s interesting, my computer security automatically deletes the file when I download it won’t let it stay and shows up as a trojan. So I have no way of editing the file.

Does anyone have a solution for this or dealt with this? Any help would be much appreciated. Thanks!