Please ask the developer of the Ethereum extension It is very complex so why it does not work for you might have many reasons... it might work but apparently not for you.. It is NOT a MIT product... perhaps reading this link might help you understand the extension https://drive.google.com/file/d/1rFkfF5ba6Gei1XkBAUWpodyAPgxJmDG1/view
and its limitation and use. Ask the developers a specific question and show them your code
. They might be able to help.