Unity Ads Crash Problem

Hi guys ,

I’m trying to put unity ads in my game . When i run on editor it shows right

UnityAdsEditor: Initialize(435434, True);
UnityEditor.Advertisements.UnityAdsEditor:EditorOnLoad()

but when i run the game in mobile phone , it crashes after splash screen . Please help ! (using unity 5.3.1)

I have same problem …