Yes there are SO many:
1. MyDinos
2. Runescape
3. Webosaurs
4. Chobots
5. Webkinz (Not so great...)
6. Jokebots (Not out yet, might be coming soon!)
A online game that is awesome and has penguins.
It happens if you either gave away your password-or worst of all- you got hacked or hacked someone else.
Just wait of course. Not really. Just send an e-mail- like the other person said- but ask them for a gift when you do. I got a free hat by saying that after the same thing happened to me.
