XF 1.4 Can't create new user

I don't seem able to create a new user on our XF installation, and another admin is having the same problem. I click in 'Create new user' and fill everything in and click Save....it seems to save it but then the new member is not on the members list.
Same thing when I go through the registration process, I get the email confirmation but then get an error when I click on the link.


XenForo moderator
Staff member
Do you have any add-ons installed?

Are you able to create new users in the ACP with all add-ons disabled?
Thanks for the quick reply Brogan!
I just checked, and it looks like the mailchimp add-on is the culprit. Any way to get around this?