An unknown fatal exception has occurred Error when using DiggThis

If I submit a story manually, I have no issues. But If I use the DiggThis button, when I go to submit my stories I get: "An unknown fatal exception has occurred Error - Whoa! Something blew up." Error.

I think it has to do with the PHP code and the way it's generating what it sends to to digg, but I'm not exactly sure what the error is.

here is an example of the URL it attempts to auto generate for one of my stories:

http://digg.com/submit?url=http%3A//shogungamer.com/news/new-red-dead-re... Red Dead Redemption screens and Achievements revealed&related=true&style=true&bodytext=It’s finally May and that means one thing: Red Dead Redemption is almost upon us.  After diligently waiting for over a year, we will soon be treated to Rockstar’s cowboy epic. Even though they don’t need to do anymore hyping Rockstar is still steadily releasing media for the game.Today’s RDR media release comes in the form of a few small

I'm wondering if the http:%3A is messing it up. Thoughts?