Butler Sheet Icons shows errors. How can I investigate what's going on?

[mountaindude]

There are of course lots of things that can go wrong.
Everything from incorrect login credentials to firewalls preventing access to invalid API keys to... the list goes on.

Here are a few things you can try to gain insight into what's causing the problems you are experiencing.

Show the embedded browser

By default the embedded browser is running in "headless" mode.
This means it's running in the background but isn't visible on screen.

By passing in --headless false to Butler Sheet Icons the browser will be shown on-screen. You can then see how far along the screen shot process it manage to get and what's shown on screen when you get the console error or warning.
This usually gives a very good indication on what's going on.