Several days before i usually refresh my rank in "statistics" (2-3 times/day) but now i can't do it anymore. The only thing i get with clicking refresh is the notice: "Update failed. Make sure you are online". But i'm sure that i'm online every i refresh. That makes me out off the competition with my friends anh my brother.
Who can help me on this :((

Sorry for my bad English

There are many reasons that a refresh can fail, and you can see a complete explanation in this answer in our Support FAQ. In this instance, there was a database error, which I have just now repaired.