Change the bms if you have any soldering skills. They are $20 or so.

yea im not familiar with bms or dual motor setup, just mid drives sry

The bike was working fine last ride ,tried to turn it on next time and nothing happened I knew that the battery was over half charged but tried to charge it and the red led flashes . Took th battery to a local battery repacker they checked it out said the cells were fine suspected bms as the problem

no idea, you gave no details