Your YouTube account needs to be eligible for live stream before you can stream your Zoom meeting or webinar to YouTube.
To enable your account for live streaming, go to https://www.youtube.com/features. If you've never used YouTube for your Google account, customize your YouTube name (if desired) and then click "Create Channel."
You need to be "Enabled" for all feature eligibility before you can live stream. If you have any features listed as "eligible," click the arrow and follow the prompts to enable.
Once you have activated your account for live streaming, you'll need to wait 24 hours before you can go live.
After 24 hours, try Stream Zoom to YouTube setup process again.