I am trying to use react-native-admob. 
When I use Sample ad unit ID(ca-app-pub-3940256099942544/2934735716), then ad is showing. But when I change to my own Ad unit ID, then ad does not show and gives error message:
**ERROR\_CODE\_INTERNAL\_ERROR**

```
<AdMobBanner
    bannerSize="fullBanner"
    adUnitID={BANNER_ID} 
    onDidFailToReceiveAdWithError={this.bannerError} 
 />

```