After installing a Custom Node - ‘ComfyUI_LLM_Party’ By heshengtao, when it told me to restart, Comfy gave me the could not start error and asked me to reinstall. Which I was forced to do, as it would not boot again.
I have been installing Custom Nodes 1 by 1, and everything was fine until I hit this custom node install. I do not know if it was the source, but it figured it warranted a look.