Which E-stop did you hit? Did you click on the one one the screen or the push the button on the controller? If it was the button on the controller, it cut power to the controller and you are out of luck. I've not used the E-stop on the screen.
I don't believe there is a way to return to where you were with the Shark controller. However, if you know the line number it stopped on, you can edit the G-code to remove the moves before it, rezero, and then run the new program. Probably easiest to add the wood to the fireplace pile and start over.
Good judgement comes from experience.
Experience comes from bad judgement.