The Subscriptions feed error message is resolved for almost everyone. If you're still seeing it, know that it will be fixed soon – thanks for your continued patience! You can follow along here for any additional updates: https://yt.be/help/CBxM https://twitter.com/TeamYouTube/status/1119013035580878848 …
Thanks for the screenshot. As your channel meets the YPP eligibility and thresholds, you can expect to hear back soon. We review all applications manually and this does take time. If it’s taking longer, it could likely mean your channel is held for a second review.