Make sure that you're using the right version of NodeJS. Scribble 0.6.4 and earlier work with NodeJS versions between 10.0.0 and 12.0.0. Scribble 0.6.5 and later work with NodeJS 16.0.x. To install, run the following command:
npminstall -g eth-scribble
If you're seeing EACCESS errors on Linux/MacOS check out this post on stackoverflow.
Build from source
You can also install Scribble directly from the git repository: