How to Add Below Header Picture Ads

I use Easy AdSense Ads & Scripts Manager, and I want to add a picture ads below the header, but I cannot success. What should I do? 1

I do not have idea how to modify the code. please help me.

I believe these are your custom locations.
You have to modify the theme code, instructions are on the plugin settings page.
If you are unable to modify the code, I recommend using our theme
PageSpeed