Why can't i send USDT?

I'm trying to send USDT from my crypto wallet, but it won't let me. What's the problem? I've double-checked my balance, and I definitely have enough USDT to send. Is there some sort of limit on how much I can send at once? Or could it be a problem with the recipient's wallet? I've tried sending to a few different addresses, but it's the same issue every time. Can you help me figure out what's going wrong?