Plzzz help guys ,Banner and interstisial not showing ionic v1!

hello guys ,
I really need help from you guys for this problem , I developed an android app using ionic v1 ,and I installed this plugin ( also added admob test code banner and interstisial ,and I build the app in debug mode and I tested it but it is not showing the banner and interstitial, if you need any information just tell me , thank you in advance !