1) Don't panic XD.
2) Try simply Relogging. Exiting the game fully.
3) Try logging onto another Character and then back.
4) Log onto another server and then back
5) Log onto a separate Account, and then back to the original one. (thanks Centrix for that ^^)
6) Restart the Computer
7) Wait a day or two.
8) Or as a last resort, Reinstall the game.
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