Car was recently flooded by water I let it sit and dry out and it started back up it ran fine for a few days

Is there any way you can tell me possibly what can be the issue

The problems you’re having is exactly what I was referring to - it is likely this vehicle will never be dependable again.. Unfortunately there is no repair protocol for water intrusion - therefore attempting to offer any meaningful / useful assistance with the no start condition isn’t really beneficial.. It will be impossible to determine the culprit without *hands-on* testing / evaluation - - even with that - it is going to be difficult due to the circumstances. I wish I could offer more helpful information but I simply can not.