Error loading Ad Unit SpaceX: INVALID_ARGUMENT - Placement SpaceX does not exist for gameId: 4938705 UnityEngine.Debug:Log (object) Rewarded:OnUnityAdsFailedToLoad (string,UnityEngine.Advertisements.UnityAdsLoadError,string) (at Assets/Rewarded.cs:79) UnityEngine.Advertisements.Utilities.CoroutineExecutor:Update () (at Library/PackageCache/com.unity.ads@4.3.0/Runtime/Advertisement/Utilities/CoroutineExecutor.cs:17)
There’s a dedicated forum for Ads here: Unity Services - Unity Discussions
Please look at the available forums: https://forum.unity.com/
Please don’t multipost, already answered here RewardedAd is not working :(