Depending on what Device you are using. If your on a computer. you could try to dump cookies and info specifically for this website.. If your on a mobile phone you could do the same thing.. Depending on how tech savvy you are resetting your cookies and restarting a browser is fairly easy but keep in mind you will lose all password/user name info for Websites. So if you don't have your login information this isn't a great idea.
The server data doesn't change it's always trying to display the same website for everyone.. The interpretation and what our Browsers does with it. Is the biggest variable. It's badly coded as well so it creates these sort of weird problems where things stop working for one person but continue to function like normal for everyone else.
Simplifying here but usually problems are caused by a sort of misunderstanding between the Client(us) and the server side as certain buttons or actions do not trigger. Ie The chat button usually requires me to click on it before it turns green. And a reset of the client can help fix the misunderstanding.