ads strategy and ad providers
I have been using admob, it worked like a charm in the first few weeks, and then the ads stopped coming in (I did not make any code changes).
the error code is usually 2 or 3, which from what I researched, indicating no ads to fill.
This happens all of a sudden to all of my little games (3 of them).
I am wondering if there are a better way to do advertising, admob is not working out for me, I am wondering if there is a working model of an ad mediation or another ad network that worked out for you.