Error on clicking Change askbot's Notify on mail received

edit

When i receive a mail for a notify ( i'm searching to better understand why i receive some notify that i think to not have configure or followed but this is an other question ), if i click on Change link that there is at the end of mail it appear an error page.

I think that the error is in the link that has a /en more. If i leave form url http://askbot.org/en/en/users/856/i-like-askbot/subscriptions/ a /en and it rest only http://askbot.org/en/users/856/i-like-askbot/subscriptions/ it work correctly.