Dunno about the error fellas, the site can be a little ropey so make sure you've followed the password guidelines and try a different browser.
Include a capital letter, number, and symbol below.
"Passwords must consist of a minimum of 6 characters and no more than a maximum of 12 characters. Permitted characters include the letters from A to Z or a to z without accents, numbers from 0 to 9, underscores (_), hyphens (-), apostrophes (‘) and full stops (.). The password is case sensitive.
For security reasons, we recommend that your password includes at least one capital letter, a number and one of the four accepted symbols as listed above."