Hey Dev I open the file and I have a question which line of the code has the money counter?
(Im questioning this because I lost my save/progress)
In order to edit or mod this game you'll want to download the thing and open it through the Twine app. Due to how Twine stores its saves, editing the save itself is ineffective (and saves barely work for this game anyways).
In order to properly save, you need to do so through the Settings menu, you can't just use the big "save" button on the left side.