I developed an android app and added admob banner and interstitial ad to the app. The banner ad is working fine; however, the interstitial ad doesnt work and always returns error code 3: No fill from ad server. The interstitial ad is working fine on the android simulator but not the real app. I tried so many time using different VPN IP (more than 100 IPs) but the interstitial ad keeps showing that error. I need to find someone who are expert in Admob network.
Here how it works:
1. You create an admob network
2. you create an addroid app (in java or kotlin)
3. You add interstitial ad to the android app
4. You send me the apk file of the app
5.I test it with several IPs
6. If it works then you will guide me though all the detailed steps for creating admob and creating app.
Please note that the error I'm facing is: No fill from ad server. This is important.