I can't play a character

hello today when i went on an airship from orgrimmar to troll town and when the airship took me it kicked me and i can not reyoin

You took a zepplin to the Echo Isles? Do you mean Stranglethorn Vale?

If you were kicked off, it could be that your level was too low or you've experienced some sort of bug. I'd suggest doing the following:

Go to My Account - Services - Character Unstuck (pick the character and realm).