2019 Jeep Cherokee dies while driving

Twice in 2 weeks, I have had my 2019 Jeep Cherokee completely shut down
while driving.  The first time I had it towed to the dealership they said I
needed a whole new Fuse Box (which wasn't cheap to replace).  Then 2
weeks later it happened again.  I called the dealership and they told me to
have someone jump-start me so I did and still nothing.  I had it towed back to
them. I called this morning and they couldn't figure out the issue.  I told them
I had someone jump it for me and now the dealership is telling me maybe
that person crossed their connections and may have messed up the car
completely.  Of course, this all started right after my warranty was up
recently.  Has anyone out there had these same electrical issues