my left airpod isnt working

If your left or right AirPod won't play audio, this support article has suggestions to try --> If your left or right AirPod isn't working - Apple Support

If you still need help, use this link for this specific issue to contact Apple Support. Click here --> https://getsupport.apple.com/?caller=kbase&PGF=PGF32003&category_id=SC0285&symptom_id=23222

I just kept tapping on the black parts until mine worked again.