Hey, I've had blenders crap out on me before and it's always something simple half the time :) Start by making sure the base is clean, you know, wipe off any gunk from old smoothies that might be messing with the connections. Then try plugging it in and giving the cord a little wiggle near where it enters the blender, sometimes the wires inside get loose.
If that doesn't do it,, check if there's a reset button somewhere on the bottom or side, mine had one hidden under a rubber foot and pressing it brought it back. Oh and don't forget to ensure the jar is seated properly, those safety switches can be finicky. Worked like a charm for me after that.
