failed to load ad : 3

Question

I\'m setting an ad to my Android application using DoubleClick and can\'t manage to show the final ad, can someone help me?

When I test an ad by adding ".addTest

Answer 1

One new and update answer: Many apps that were removed this October(2018) for the lack of Privacy Policy are unable to receive ads after they get back in Play Store. You must use this form to request a "reset" for that app's ads. https://support.google.com/admob/contact/appeal_policy_violation

Took me a few days to realize and find the answer. Hope you get your ads back.