Problem:
Google AdSense places too many ads on your website.
Solution:
1. Disable Auto Ads (important)
Go to: AdSense > Ads > By site.
Click the Edit icon beside a site.
Turn off Auto ads on the Ad settings tab.
Turn off Auto optimize on the Auto optimize tab.
Click the Apply to site button.
2. Create a Single Banner Ad Unit
Go to: AdSense > Ads > By ad unit.
Create an ad unit:
Ad type: Display ad
Ad size: Fixed, 320×50
Name: 320x50_Banner
Save and copy the generated ad code.
3. Insert the ad code into your website.