First of all, you can "reload" 'til the cows come home. You'll get the same message!
Stats have not been working for a week. DO NOT bother clearing your cache or deleting cookies. It won't help! If you use Google Analytics, you'll still be able to access stats, but not in real time.
This is why I always always always recommend a "back-up" to ANY service you really find critical to your blog! I have a couple of sitemeters I can use to access the blog's vitals! Hopefully whatever is interfering with the stats display will soon be fixed.
Meantime, don't go off on Blog*Spot or Google ::: it's a known issue for blogger/blog*spot blogs!