Why can't I unstake my cosmos?

I've been trying to unstake my Cosmos tokens for days, but it seems like I'm hitting a wall. Could you please explain why I'm unable to do so? I've followed all the steps outlined on the platform, but still no luck. Is there a specific time frame I need to wait before unstaking? Or is there some other requirement that I might be missing? I'm really confused and would appreciate your help in clearing this up. Thank you in advance for your assistance.