For a self-fix, quickest workaround solution: Go to this page of Roll20 Marketplace, right-click and download the square art. Drag-and-drop to upload the square art onto your Game Cover image area. <a href="https://marketplace.roll20.net/browse/bundle/5667/out-of-the-abyss" rel="nofollow">https://marketplace.roll20.net/browse/bundle/5667/out-of-the-abyss</a> That's too bad it was deleted, and may be a bug alongside numerous other bugs reported with recent Module Patches on here. If you only lost your cover image, you're lucky. Check inside the module because other users have been reporting various missing content like maps, handouts, tokens.