The AKASO KingPad A90 is a 9" tablet with a dual core processor. It has 8GB of internal storage, runs Google Android 4.2 Jelly Bean, has a front and back camera, a rear speaker, and support for HDMI output. This device was released October 31, 2013.
It’s possible the lens is dirty, try cleaning the lens with a lint-free cloth. Check to see if your lens has no cracks in it. If it has cracks, try and replace the camera.