Interacting with Pangolin router

Hey, I have a question, I am learning Avaxchain right now and I wanted to send manually transaction via your router, but I can’t interact with it. I want to swap some Avax for USDT but I get an error:
“Given input “de0b6b3a7640000” is not a number.”
This hex number is equal to 1 Avax. Why is that, when I try it in BSC(pancakeswap) or ETH(uniswap) everything works fine.

Can you come to discord for help in the #dev-chat channel? Thanks