Why can't I sell my WoW Token?

Excuse me, I'm having some trouble understanding why I'm unable to sell my WoW Token. I've been trying for quite some time now, but it seems to be stuck or something. Could it be because of market fluctuations? Or is there a specific time limit on how long I can hold onto the token before I'm unable to sell it? I'm really hoping to get some clarity on this issue as it's causing quite a bit of inconvenience for me. Any insights or suggestions would be greatly appreciated.