If "Opt out of Ads Personalization" is enabled, the Advertising ID will be deleted from your device and our app will ask you to disable "Opt out of Ads Personalization". 

Since appKarma requires your device's Advertising ID in order to do reward tracking, you will need to DISABLE "Opt out of Ads Personalization" in order to use appKarma.

Alternatively you can also do the following to get a Advertising ID:

Go to Settings > Privacy > Ads > Get new advertising ID > Confirm