Improper Error handling

[akwotom]

Hello, live-plugin-manager works well. Well, except it constantly throws an error: Invalid plugin name 'undefined'.
I use node v18.3.0, and npm 8.11.0, and ES modules.

[davideicardi]

Thank you @akwotom for the bug report. I agreee, there should an error somewhere. As usual I appreciate any help, PR.
Otherwise I will try to work on this in the future.