Thanks for the reply.
I did as you suggested and published a new post. This is what showed up in the error log:
My forum is linked to a member-only site. My developer has been using the Discourse SSO plugin to ensure only up to date members can view and comment on the forum. He developed a custom plugin to work in conjunction with it so refunded or expired members wouldn’t continue to have access. I know he was using user trust levels to make that happen. I think his plugin would check user status in the membership plugin, then coordination with Discourse.
We set the forum up so that members instantly had a user trust level that permitted them to view, comment and create new posts. I think, to make his plugin work, he “upped” the minimum user level and gave everyone that new level.
Anyway, obviously I don’t really know what I’m talking about, but it seems, from the error message that his plugin in likely the source of the problem. Do you think I should try manually changing my trust level or something like that, or do I just need to contact him?
Thanks for your help