We've made updates to the YouTube Partner Program to strengthen our community & prevent impersonators + spammers from harming our platform. We understand this affects many channels, but believe it's necessary to protect our creators. For the full updatehttps://goo.gl/T1pvG3
You're almost there. You can re-apply for monetization once your channel reaches the new threshold. It'll be reviewed to make sure the content is according to the YPP policies.