Sometimes a problem can stem from out-of-date files in the browser cache. You can solve these by clearing it out.
- Exit out of any tab that has the trouble website open.
- In Chrome, hit "ctrl + shift + delete". This will open the Clear browsing data.
- Select "Cookies and other site and plugin data" and "Cached images and files". You can also choose to clear other histories, but these two are the important options.
- Click "Clear browsing data" and reopen the website that was giving you problems.