Android Game screen turn into in black and blank after i clik on charboost add.

Dear all , i am facing a problem on android device.when i click at chart boost add.Then game screen turn into black.i can hear music and if i tap on screen i can press the button but i cannot see anything.Please help me to resolve that issue.

I solved the same issue by commenthing the OnGui() function in Chartboost.cs script.

I Hope is not too late!