npx npkill fails with "Cannot read property 'path' of undefined"

[orestes]

Describe the bug A clear and concise description of what the bug is.

To Reproduce Steps to reproduce the behavior:

1. Open a terminal
2. Run npx npkill
3. The bottom-left corner displays a message: "Cannot read property 'path' of undefined"

Expected behavior npkill runs normally and displays a list of directories

Screenshots If applicable, add screenshots to help explain your problem.

• OS: MAC OS X 10.14.6
• Version: npkill v0.6.0