2015 Subaru BRZ won’t start

My cars engine won’t start. Whenever I take it for a short or long drive and let it
sit it won’t fully start without me having to push the entire car for 5 mins and
then start it when the car is rolling. The entire dashboard and center console
will turn on though and I have replaced the battery on the key fob and in the
car and I don’t have any problems that may be with the alternator or starter. So
I was wondering if it’s a computer problem and if others have had this problem
with their brz as well?