Live Ads not showing in Lollipop and Higher

Hi. I just realeased my app in production and I didnt know that the ads are not showing in lollipop and higher devices because is working when isTesting is set to true, but it doesnt work when I set it to false, i even tried to remove the isTesting code and still not working. However, it worked fine when I installed it in jellybean and kitkat devices. I used admob free plugin. The plugin only fails for me on live ads using lollipop and higher. Test ads work fine. Can someone help me on this? TIA

hi any update on this

@junjunhernandez Tagging in post

UPDATE :
Just need to wait for users to have more requests to show the ads. Fixed now…