Errors:

In most cases, this "RPC Impossible" error occurs when you're trying to run a scraper on the Bardeen tab instead of a normal web tab.

First thing to check is, are you sure you're running the scraper automation in the correct tab? If you’re running it from Bardeen’s extension tab it might be the cause.

Another common fix for these cases is just to restart the page or refresh Bardeen like this: