Somehow, my #FediFetcher data got corrupted. When I was poking around why profiles and replies weren't being backfilled, to my surprise, the last time FediFetcher successfully ran was April 30. I've been using FediFetcher since it first came out and was released way back in the day with no issues.
It wouldn't run with the config file or by command line arguments.
The error I was getting was ""decoder.py", in raw_decode raise JSONDecodeError("Expecting value", s, err.value)....."
I decided to rename my artifacts folder and put my config.json file in a new artifacts folder and it started running normally again. #MastoAdmin