You may want to do some research,

https://www.crossfireforum.org/forum...-no-start.html

I'm a little confused with your symptoms but I would search in this order:

How old is the battery (car)? Take car battery to be tested.

Change key fob batteries. I don't really think that is the issue but it is cheap to check? About $5.

Read symptoms for Remote Controller above and then for crankcase position sensor symptoms? One gives you crank and no start the other gives you no crank but all else electrical works.