I will fix your ads and also integrate ads and In-app purchases to your game. I will add banner interstitial and video and rewarded video ads in your game.

I gives integration services of following ads networks for Android & IOS.

• AdMob (Banner ad, Interstitial, Rewarded Video), AdMob Mediation and also multiple banner. 
• Unity (Banner ad, Video Interstitial, rewarded) & Unity Mediation.
• Facebook Audience Network (Banner, Interstitial, Rewarded).
• Applovin ((Banner, Interstitial, Rewarded, Rewarded Interstitial).
• ChartBoost (Interstitial, rewarded).
• Adcash (All ads Format).
• AdUp Technology (All Ads Format)
• IronSource (All Ads Format)
• Publift (All ads Format).
• AdColony (Interstitial, rewarded).
• etc

What I will need.

Ads Id

Place where you need to show the ads.

Source Code