We noticed that in a couple of versions of n8n users were able to set an email address in the n8n instance which if there is no user management enabled shouldn’t be possible. This was impacting 0.215, 0.214 and 0.216, To fix this we released 0.216.3, 0.215.4 and 0.214.5. We have the ability to manually resolve this but upgrading the n8n cloud instance to a recent release will also solve this.