Can you reassign or reset? If not,something might have jarred when stored. For grins, check the ir’s on the engine and tender. Are they blocked?
Open up (if you’re comfortable) and check plug connections. Maybe a loose screw. That’s where I would go if not answered directly.
You could reach out to the Big L. They may respond by New Years.
These are pretty obvious, but, may help you. Please post the answer when you find it. Someone will have the same issue down the road.
