Can't confirm new organization members

I’ve created an organization so that I can share passwords with my girlfriend. She got the invite, accepted it and now it’s up to me to confirm it before she can actually see the contents.

The problem seems to be that Bitwarden isn’t accepting my pressing of the ‘confirm’ button. I click it - it does nothing. Chrome, Safari, Firefox - all nada.

Has anyone else had any issues with adding people to organizations? Am I doing something wrong?

Resolved via support ticket. User was trying to add a new admin to a free organization that was already an admin of another free organization. You can only be an admin/owner of one free organization.