Actually, you can try to regenerate your images through the “Regenerate Thumbnails” plugin, after installing navigate to Dashboard -> Tools -> Regenerate Thumbnails, there regenerate images by clicking on the “Regenerate Thumbnails For All Attachments” button.

https://wordpress.org/plugins/regenerate-thumbnails/

https://www.wpbeginner.com/plugins/regenerate-thumbnails-new-image-sizes-wordpress/

Kind Regards