Featured image not showing

Hey developer! This is a really great plugin, but there seem to be problem with the latest version of the WordPress. I am unable to see the featured image, category name and author name. I even tried to look into your files, but it’s really very high level coding, I can’t do anything in the files as well. I will highly appreciate if you fix this issue ASAP and make plugin work again like it should be. I really love plugin, please fix it. Kindly revert back with the solution. ??