My tumblr dash won't load completely?

[Alfred]

You know how when you're on a computer and you're scrolling through the dash and then you hit the bottom of the page and it takes a couple seconds for the rest of the posts to load? Yeah it never loads for me, I get to the bottom and then it just has this little loading sign. I have xkhit installed and it worked just fine. I recently got avast (free version) and I noticed that it started around the same time that I got it but when I click the little icon (i use chrome), it just says that it's blocking social networks and ad tracking. It's really upsetting because I can only see the first page and I don't know what to do. I'd appreciate any help.~