Editor Invitations Aren't Working (invitee doesn't receive email, copying link directly shows and error)

I’ve been unable to invite an editor for a couple of days and I haven’t seen any posts regarding this topic yet.

I add an editor, and they never receive the email to setup an account. I then try to copy the signup link directly, but the dialogue doesn’t provide a link, just an error message where the link normally would be.

This only happens on this project. I tested invites on two other projects and they worked just fine.

Any help would be appreciated!

Here is my site Read-Only: https://preview.webflow.com/preview/envisor-consulting?utm_medium=preview_link&utm_source=designer&utm_content=envisor-consulting&preview=0bb4d2c1b8aa0f3ea1b94d4a9dc44413&mode=preview
(how to share your site Read-Only link)