You are being redirected to an external decentralised finance platform called UniSwap. This service is not provided by Easy Coins and you are using it at your own risk.
You will need Ethereum to transact on decentralised finance platforms like UniSwap.
Easy Coins recommends using MetaMask on your chrome desktop browser connected to your hardware wallet when using decentralised finance platforms like UniSwap.
Download MetaMask here
Instructions on how to connect your hardware wallet to MetaMask can be found here