I was having the same issue until I put it in a div with a set width. It seems to be OK now.
Yeah, same thing started to happen to me a few days ago, and it was working OK up until then. :-/ I use Yoast SEO, I don’t know if it could be a conflict of plugins or what.
Yeah, I was using this plugin on two websites and they were working fine… until one day they weren’t and I got this same error. And it’s SO weird, because I haven’t updated anything to make it stop working. :S
I was getting the same error. My twits weren’t showing but when I tried with the account in their example it did. I figured it was because I was using capital letters on my username, like I have it on twitter. When I changed it to lowercase, it worked.
Maybe that’s why it’s not working for you?