It says, the problem is using older version of libpng which causes security vulnerability. Also it says, our game will not be deleted. but we can not publish new versions.
I used phaser framework for my games. Maybe this is the problem i dont know. On the oher hand there are also people who suffered this problem are using Corona SDK.
Maybe we just use jpg or something instead of png.
Finally, we do not know actually how can we solve this. I hope someone will help us