It looks like you’re having issues with thumbnails displaying horizontally after installing your WordPress theme. This could be due to theme compatibility, CSS conflicts, or incorrect thumbnail settings. To troubleshoot, check your theme documentation for layout configurations, verify the thumbnail sizes under Settings > Media, and inspect the CSS using developer tools for any overriding styles. Additionally, try deactivating recent plugins to see if there are any conflicts. If the problem continues, consider reaching out to the theme developer for further assistance.
Yes I have seen all the plugins inactive but the problem is not resolved. Finally after I changed the theme and installed another theme of my choice the problem was solved.
Thank you very much.