Double period in link for Email Confirmation Link

[XFFA.IR Bot]

I’m having a problem with the account confirmation email links in my XenForo setup.

• The button link points to a broken URL like:
  https://forum..example.com/account-confirmation/... (notice the double ..).
• The plain text link in the same email is correct:
  https://forum.example.com/account-confirmation/...

I’ve already checked that the Board URL is correct in ACP.