Can't add new members

I’m having the exact same issue described here: Cannot add new member error 1005

The resolution in that case seemed to involve contacting Cloudflare support as the issue was on their end. But I’m on the free plan and don’t seem to be able to send a message to support. I tried, but for any support category I select, it says “Customers on our Free plans can only submit tickets for billing, account, and registrar issues.” I would say this is an account issue, and I have selected that as the category, but no matter what sub-category I select (that is reasonably related to the issue), I still see that message and can’t send a message to Cloudflare.

Any suggestions?

Same issue here, I don’t think it can be solved quickly, so you might have to give account access to other members.