I have received this mail from google AdMob that limited ad serving placed. I googled it. I am not understanding why it’s happening.
Here is the screenshot of app:-
ads limit is because of wrong impression or wrong click and they will check your ads call and status and within a week they will fix or ban your account, there is nothing to do in app.
Ad limiter is used by admob when you start getting unknown traffic or inorganic traffic
eg: When you advertise your app or when you get too meny download from social media
Mostly these things only happens
To solve this
Immediately delete ad unit placement ID and leave it for 10 to 15 days
after that you create a new placement ID, implement in your app
and update it on Play Store