Wow, that is a LOT of working out. Why so much?
It's not so much that you're necessarily working out too much (although honestly, you may be.) It's that you may not be eating enough to support that level of activity. If you're getting the warning on your page that you may be burning too much, it's because you're significantly exceeding the amount you entered into your fitness settings.
YOu'll need to go in and enter an approximate weekly calorie burn (4800-6000 a week) to get the amount of calories you need. You will (and should) get a higher calorie range.
But honestly, that kind of working out is excessive, and not necessary. What are you doing to burn that much?
Here's an article you'll want to read about overtraining and the potential negative side effects: www.sparkpeople.com/resource/fitness_artic