You need to clear your cache or cookies.
In most computer-based web browsers, to open menus used to clear your cache or cookies, you can press
Ctrl-Shift-Delete (Windows based) or
Command-Shift-Delete (Mac based). If this doesn't work, search your browser's menu for "clear cache".
If you're unsure what browser version you're using, from the
. In Internet Explorer and Firefox, if you don't see the menu bar, press
. You can also search online for this information. Here is a great resource on clearing cache
on all browsers including mobile devices.