Lulu here from the Shopify Support team. Thanks for reaching out here, and I'll be more than happy to help you out.
I had a look through that link and no ads popped up at all for me. Would you mind sending a video of how the admin is behaving on your end so I can take a look? You can use a third party application something like Screencast-O-Matic to do this. Once I can see where in your store these are showing we can look at possible causes and help you resolve it.
It is more than likely down to your browser, so I would clear your cache and cookies and ensure you are using Google Chrome and even try going to the storefront using an incognito browser and let me know if you still see the ads popping up. I hope this helps but let me know if you have any other questions, I am always happy to help in any way I can.
Lulu | Social Care @ Shopify
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