Banners managed by Google Ad Manager don't display in another domain

Job ID: 35352953

Budget: $10 – $30 USD

Hi, we use Google Ad Manager to manage all the banners on our website. It used to be working on two domains: www.enfsolar.com, and www.enfrecycling.com, but it stopped working on www.enfrecycling.com a few months ago.
Anyone knows how to fix it?

Eg. these two pages have the exact same code, enfsolar.com can display the banner normally but the other one doesn't:
https://www.enfsolar.com/about?dev=1
https://www.enfrecycling.com/?dev=1

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Related categories: System Admin Google Adwords