Can’t get started

We have WooCommerce installed and plenty of sales.
We have a Google Analytics account but no adwords account yet.
Having installed this plugin, go to the dashboard and attempt to create a campaign,
Firstly the categories don’t correspond to categories in our store, so I assume they are categories that come from Google Adwords. I pick “other” and put Educational in the text field. Click on Continue:
We were unable to find any enabled products in your store. Please check for at least 1 enabled product, and resync your store to continue.
What is “enabled” and how do I enable a product?

The page I need help with: [log in to see the link]