Why can't I send out my USDT?

I'm really puzzled here. I've been trying to send out my USDT for quite some time, but it seems like it's stuck or something. I've double-checked my wallet balance and the recipient's address, and everything seems to be in order. Could it be a network issue? Or maybe there's some sort of maintenance going on? I'm not really sure what's causing this delay. Could you please help me understand what might be going on and how I can resolve this issue?