Not a bug Two forward slashes after domain in emailed urls.

Currently my website, is sending the wrong URL when emailing users. When users are registering it is linking the activation URL with two forward slashes after the domain.

Ex :

So when users try to accept the email they get an error. Even when a conversation is started and the user is emailed about it the link contains two forward slashes. Just wanting to know what I can do to fix this, thanks!

- James