What does it mean a car won't start after miss fire cylinder 1 and 3 and po 174

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One day i was driving in the high way i was going 50 the speed after i came out from the high way i felt everything lock on me then my car stopped and did't start. I tried couple times then it finally start when it did i took it to check it then a code came up miss fire cylinder 1 and 3 then po 174 bank 2 oxygen senior then my engine light was flashing. when driving it, it stop for a second after it take up speed then it was shaking idle. And now it doesn't start at all What seems to make the problem better or worse? shaking when driving and after it stop for a second then it take up speed. Also engine light was flashing How long have you had this problem? now