Cruze wont stay running.

Hey yall, I got this 2014 chevy cruze with a new coil pack, spark plugs and cat. The car was running fine till it started to stumble and stall out. The car wont restart 9/10. When you try to crank it the car will miss fire really bad trying to come back to life.

I have the codes p0299 p0506 and p0420.

Thank you!