Free Company Chat not working

[Rhen]

I switch my chat mode to free company in the drop down list. When I type I get a red error message saying "the command [stuff i typed] was used incorrectly."

If I try /freecompany or /fc I get "the command [stuff i typed] does not exist."

So right now I can't talk to my FC at all. Any advice that doesn't involve relogging?

I forgot:
Server: Ultros
Character: Rhen Forbin