Metamask2Conflux, can not send cUSDT

I cant send cUSDT with metamask and confluxportal

If ı cant send request like this why i can see this options on web site?

At which step did you stop working?

I did only clicked confirm information checkbox and i wrote my metamask password.

No information on chain or website.

How can i transfer my USDT to cUSTD with another way?

need 500usdt can transfer

are you joking me?