Validation error, cannot list tiers after upgrade


I’ve been hosting ghost for a few years now on a docker-compose instance. Recently (about a month ago) I upgraded my ghost instance and started receiving this error when trying to navigate to the admin panel.

I have found similar errors in Github but none have the exact verbiage as this one. Any advice or pointers would be helpful.
I’m also happy to provide more information if needed.


@rwatts3, it’d be really helpful if you provided greater detail about your installation, e.g., versions of software, Ghost, database, OS etc.

I believe this is to do with having a tier with a price of 0.

It would be good to confirm if this is the case.