Private runescape chat

Basically I can’t send pm’s. Or I can send them, but theres no evidence of it being sent as after I type the message and ‘send’ it, nothing happens.The messege doesn’t appear in my private chat. I have no idea if the person I pm actually gets the messege either.
My private chat does show when people log in and out. That’s all though.

Anyone having the same problem? Also is there a temporary fix? like with the action bar locking (taking gp out or adding notes fixes this).

1. Logg out and back in
2. Turn privat chat off and on
3. Turn privat chat filter off and on
4. Change your Interface setup (you can change it later back)