Lost items in my bank.

I leveling my dk, and didn't played for a week. I wanted to place some items into bank and... it's empty.
At first i thought maybe someone was stealed it, but my bank doesn't even has a bought slot, which was bought for 10 silvers and had bag in it.
Looks like my bank has just reset to default...
I'm new player and it wasn't too much, but i am not even 80 lvl and yet, these things happens.
Is it server bug or what?

Nevermind, I forgot my first char has everything in bank xD