If you get an error message, go to settings in your browser to enable cookies.  In Google Chrome, it works like this:

1. On your computer, open Chrome.
2. At the top right, click More. Settings.
3. Under "Privacy and security," click Site settings.
4. Click Cookies and site data.
5. From here, you can: Turn on cookies: Next to "Blocked," turn on the switch. Turn off cookies: Turn off Allow all cookies.