Hi,
1. That means, that the word “AB” and “Tasty” are matched in either some other selected field (like title, content, excerpt, taxonomy terms etc..).
When I click the second result, I can already see multiple matches for both keywords: https://i.imgur.com/scbjjLu.png
2. I tried the search phrase “AB Tasty” and the second result is pointing to this image URL: https://omkb.de/wp-content/uploads/2021/08/reviews-logo-fallback.png
..this URL goes to a blank 404 page. Check if the featured image is set correctly, as it seems that this file does not exist. The plugin requests the image from WordPress core, and the first default source is the featured image, so I assume that is set incorrectly.
You can also change the image sources as you wish: https://documentation.ajaxsearchpro.com/general-settings/image-options
