Please clear the cache of your browser. In Internet Explorer 9 you can do this, for example, in “Internet Options” – “General” – “Delete”.
Please remember to place a checkmark for “Temporary Internet Files” in the next window. After clicking on “Delete”, the cache will be cleared. Now, after refreshing the browser window, you should see the new web interface.
You can also try to reboot the camera by disconnecting it from power for at least 7 seconds. Then close the browser (or the app) and then open the app again. Please log in again. Now the new web interface should be displayed.