!!! - be sure your ad-block is OFF. AdCash panel may work incorrectly with ad-blocks.
Find your website in the list of Zones and click on 'Add a new Zone' button.
You will be offered to add several types of ads, select 'banners' and choose a size.
Scroll down the page and save it. That's it.
Now you can import your AdCash banner to Adspyglass. Read - How to import AdCash banner to AdSpyglass