Hi there. We know that acceptance to the YPP is important to you. Our review team has not come to a clear decision during the initial review, so we’re putting extra effort and resources into reviewing your channel multiple times before making a decision. Hope you hear back soon.
While we cant get into specifics, you could try making adjustments to the title, description or thumbnail based on ad-friendly guidelines: https://goo.gl/74Gpkd . Hope this info helps.