Hi,
Sure, here is a list of image sizes
thumbnail: 150×150
medium: 400×300
large: 1300×800
yith-woocompare-image: 430×490
shop_thumbnail: 200×230
shop_catalog: 430×490
shop_single: 700×800
woodmart_shop_catalog_x2: generated
Log in to your WordPress admin dashboard.
Navigate to “Settings” > “Media”.
Under “Image sizes”, you should see a list of the different sizes of images that WordPress is currently generating for your site. Find the sizes you want to restore, such as “Thumbnail”, “Medium”, or “Large”.
Click on the size you want to restore, and then change the values in the fields for width and height to their original values.
Click the “Save Changes” button to save your changes.
Best Regards.