I once tried making Coq au vin based on my friend's recipe, but it didn't work. Upon telling her that I couldn't do it, she responded that she can't help unless I explained on what step I got stuck and why.

Consider directing your question to the defuse developers as they will be best suited to help you. One good option is to use Github Issues for the defuse repository.

Else, as Mensur Dlakic noted, we are unable to assist you with additional information, such as the error message you received during your install for example.