Show failed return NOT_LOADED_AD

[vuonghvat]

On test ID I got error like NOT_LOADED even though I reloaded the ad then show it in onLoadResult

` @OverRide
public void onLoadResult(String s, boolean success, String s1) {
Log.e("initAdSDK","onLoadResult "+success+" -"+s1);
if (success) {
rewardedAd.show(getCurrentActivity());
} else {

            }
        }`