Problems with iOS integration

Hi to all

i got in NEW dashboard my "GAME ID" and then i entered to the AD Placements and took "INTEGRATION ID"
and then i put it in to my code:
-(void) startUnityAds {

NSString *gameID = @"1031332";

[[UnityAdssharedInstance] startWithGameId:gameID andViewController:[CCDirectorsharedDirector]];

[[UnityAdssharedInstance] setDelegate:self];
[[UnityAdssharedInstance] setZone"rewardedVideo"];
[selfperformSelectorselector(ok) withObject:nilafterDelay:0.5];

}

-(void) ok {


// Use the canShow method to check for zone readiness,
// then use the canShowAds method to check for ad readiness.
if ([[UnityAdssharedInstance] canShow])
{
// If both are ready, show the ad.
[[UnityAdssharedInstance] show];
}
}



but it dont works: (logs)
2016-02-11 05:25:12.028 ZombieBasketball[7912:4829523] Initializing Unity Ads version 1506 with gameId 1031332

2016-02-11 05:25:12.090 ZombieBasketball[7912:4829680] Requesting Unity Ads ad plan from https://impact.applifier.com/mobile...pe=CTRadioAccessTechnologyLTE&encrypted=false

2016-02-11 05:25:12.590 ZombieBasketball[7912:4829523] Unity Ads not ready to show ads: current zone invalid

2016-02-11 05:25:12.797 ZombieBasketball[7912:4829680] Unity Ads initialized with 3 campaigns and 3 zones

2016-02-11 05:25:13.235 ZombieBasketball[7912:4829694] Create ad units from existing data. adunits=0 path=/var/mobile/Containers/Data/Application/A6E788AE-43EF-4B3A-922D-3BD3C5473DF6/Library/Caches/CBPrefetchCacheFolder/ad_units