Modified ad code: Resizing Ad Frames

Knowing
Banner ads form now
Without Layout
Only one ad at the top of the page
What do I do to solve this problem
I am tired of admob with thunkable apps

Leave the admob banner size at automatic.

I did everything
1- To the extent that I deleted the banner ads permanently
2. You delete the ad units and change them with new ad units
3 - made the banner ads without any frames
And also Admob stubborn and does not accept modifications
Is there a solution to this problem