BTCS swap to USDT Unknown Method

My swap in BTCS to USDT is unknown Method what is the problem? Any help please? I have only 0.0502 btcs in my metamask account.

Hello, are you in BSC chain or eth chain?

Can you describe your problem in more detail?

Hello sir I’m a satoshi miner and we’re are in chain testnet. I’m not sure if I got wrong in my steps in following the YouTube videos. I don’t know in swap faucet I got wrong and what I encounter problem is the “Unknown Method” display during confirmation. What I need to know is the basis why this notice or error displayed. Can you give me the exact procedure how to swap?

Which test network are you in?