App Thumbnail Showing Bubble While Sharing

Hi, I am on a paid plan and my app is live. I have made the basic SEO settings such as the title, favicon, description, etc.
However, when I share the app link or the website URL, the preview is still showing Bubble’s ATF (You don’t need to be a coder…). Here is a screenshot:

How can I fix it so that the preview or thumbnail shows my app’s home page ATF (above-the-fold)?

App Thumbnail Showing Bubble while Sharing

See here:

Thank you @Yalcin