Hi, fangquans

Thanks for reaching out to us.

wpDataTables is a WYSIWYG (What You See Is What You Get) concept-based plugin. This means that the table should look the same both in the back-end and in the front-end. If your front-end table looks and behaves differently than in the back-end, this usually implies that there is another plugin (or the current theme) that's changing the behaviour of our plugin.

It is probably the current theme you are using is creating a conflict, but I also found some errors in the console of that page.

 Error 404 for accessing a CSS styles file, it could mean that some permissions on your FTP are not correctly set for access of this file; or the file might be missing.

The path is - https://greatnewfuture.com/university-ranking/mystyle.css

- When I tried to change the "display:none" for the table element to "display:table" , as you see, I got this loading sign, and there are issues, probably caused by the same culprit as other conflicts.

Can you please change the theme and see if the issue is resolved? If not, then please deactivate all other plugins except for our plugin, refresh the page where the issue is, and see if it is resolved (it should be). If it is, then start activating other plugins one by one, and after each activation refresh the page to see if the issue reoccurred. Once it does reoccur, you will have found the plugin causing the issue.