2016 Auto won't start w Start/Stop button

[renzs1]

Hey guys I have an automatic 2016 facelift that wont start. Last night I was driving back home and when I reversed into my driveway, I noticed my reverse camera wasn't working so I thought 'I should just turn the car off and turn it back on, hopefully it'll fix it'. But to my surprise after I turned it off it did not start, no crank at all. Tried starting it a few times but didn't work, checked the battery but the battery life is good lights are working fine, jumpstarted it just in case but didn't work. Gave up on it for the night then the next morning I tried starting it again but this time it started but it had a check-engine light on. So I turned it off and tried turning it on but then again, it refuses to start. Please help me guys, what is causing this to happen? I did leave the car for two weeks because I flew out for work but I don't think thats the problem because it ran fine last night until i got home. Please help, thanks in advance!