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 …
But I have received an email from youtube yesterday telling that my monetization was not approved DUE TO THE REUSED CONTENT. But my contents were under fair use law here in the Philippines.