hello ..was flashing a tune and realized I didnt have the key in the on position and the handheld stayed stuck on erasing .. now the car won't start .. tried several times flashing full stock and I just get the error .. tried disconnecting the battery etc.. nothing is working

I've flashed many times between tunes to the point where I don't even think anymore when I do it ..

if anyone has any input here I would greatly appreciate it ..

2011 Buick Regal 2.0T