Then set like that
I don’t have an error but the ad still doesn’t load
Then wait for vishwas replay he could help you
Ok thanks for your help
I don’t think it will do much but can you try using notifier or label in place of snackbar?.
When I use the notifier or the label component it just write nothing
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Looks like it’s an issue on our end. For now, can you try with test mode disabled?
When trying in same device will not lead to fake impression?
One or two impressions generally won’t hurt your account’s standing, although yes, it’s not advised to test ads with test mode disabled.
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Can you check your app-ads.txt?. I had this issue, correcting app-ads.txt fixed error code 3
Sure but how ?
If you add the ads correctly and Ads.txt also then Update it on Playstore and wait 1 to 2 days,this errors is gone automatically…It’s same happened to me as a new ads Placed with your Admanager account…
I will update my game on Google Play Store but what is “ads.txt” ?
3-4 hours max
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Read about Ads.txt
Have you listed your website on Play Store app listing ?
Are you moving from any other ad network?
Yes I did
No I’m not
I am really sorry but I still don’t understand what is the app-ads.txt file and how to create one or configure it ?
Just search in youtube how to place ads.txt via blogger
In my case, I use google site to display reglementation and I have no site that I can user to stock app-ads.txt.
So, I have found this site who can host the file : https://www.app-ads-txt.com/
I recommend this one ! I use it now 
Regards !