I also recommend clearing the browser and site cache, that usually helps. If not, then try to hit the F12 button (it might be different) to open the developer tools. Then with the dev tools open, reload the problematic page, and check the console if there are any messages/errors reported. Optimally there should be no errors, maybe a few informative messages.
Best, Ernest Marcinko If you like my products, don't forget to rate them on codecanyon :)