Creators often tweet @ us asking about YouTube Partner Program applications – if that's you, we have some improvements to share:
Full update
https://yt.be/help/ypp-sign-up …
Quick summary of updates 
If you haven't done any troubleshooting yet, the steps outline here and help fix the issue for any device: https://yt.be/help/sWdH . If you're still getting an error after this, we recommend you submit feedback here: https://yt.be/help/feedback Let us know how it goes!