Hey kenz273,
As the issue is only occurring with one AirPod, we'd recommend reviewing this article as it provides the best steps to take to attempt to resolve that issue: If your left or right AirPod isn't working - Apple Support
"If there's low volume in one AirPod
If your left or right AirPod isn't playing any sound, or if the volume is too quiet, follow these steps:
- Check the microphone and speaker mesh on each AirPod.

- If you see any debris, clean your AirPods using the guidelines in this article, and see if that fixes the issue.
- Go to Settings > Accessibility > Audio/Visual > Balance, and make sure that the balance is set in the middle.
"
"If there's no sound in one AirPod
- Make sure that your charging case is fully charged.
- Place both AirPods in your charging case and let them charge for 30 seconds.
- Open the charging case near your iPhone or iPad.

- Check the charge status on your iPhone or iPad to make sure that each AirPod is charging
. 
- Put both AirPods in your ears.
- Play audio to test both AirPods.
- If an AirPod still isn't working, reset your AirPods or contact Apple Support."
Thanks!