Default [Q] help guys! sort of questions here

Guys some question on or about google play black background icon? And youtube version when i updated it became lag and keeps on loading and didnt play the video? Any solution? Im using mere rom hd based kitkat 4.4.2 phone unit oplus 8.15 rooted. thanks guys in advance may this questions helpful to others with same of my problem thanks guys! More powers to all of us!