You work like a dog during 2 weeks of sprint, to hear from your P.O on the end that you did not delivered anything. Because he found 1 bug.

Wow. Just wow. I hope you learned a lesson here

Revert all your changes.
Tell him that NOW you haven’t delivered anything.

@AnxiousADHDGuy to find another job maybe

Fuck him and the seatless chair he places his bottom on. You can't expect no bugs in a 2w spring with no testing phase. Fucking script kiddies that think that a bug is an anomaly rather than the rule in actually complex software.