Did you already install Grapejuice on your Chromebook before?
If so, I recommend just nuking your Linux install and starting from scratch.
Please follow the steps below exactly.
Open the Linux Terminal app.
If you cannot find the app, please ensure Linux subsystem is installed on your Chromebook. You can install it through Settings > Menu > Linux (Beta) > Install
Download Wine. Wine is a compatibility layer (NOT emulator) for Windows software on Linux devices. Run the following commands: