You can't post at the moment. Please contact Support.

I see a lot of people are having trouble with SubStar right now. Has anyone else encountered this error when trying to publish or schedule a post? (The error text itself reads: "You can't post at the moment. Please contact Support.")

This seems ridiculous, considering that support hasn't responded to me for months; their longest response time was 16 months (I even forgot I wrote to them).