Hi @officezen,
Sorry that you ran into issues here!
When you made the change, did you also flush your cache to make sure you’re seeing the new data on the front end and not old stuff?
If you don’t flush the cache after that operation, you’ll be seeing old data on your browser.
We recommend clearing the server cache, if you have one (which is found either in your hosting settings or on your plugin settings for things like WP Super Cache and W3TC if you have them installed), as well as your client browser cache.
The best way to get uncached data on your browser is to use a Private browsing window or Incognito mode (depending on your browser). That ensures you’re seeing the latest, correct data.
I’m not sure I understand what you mean by “Sortbar Fields in the backend are not clickable”. On what screen do you see this?
Can you show me a screenshot?