The following appears at the top of my Publish page.

What does it mean?

(I have a catgory assigned to this Weblog and it it appearing under the Category tab, as does the Primary Category selection.)

seajay,

I’m assuming you’re using the latest version of Primary Category and ExpressionEngine?

When does this error appear? When loading the Publish page (both New Entry and Edit Entry, etc)?
Does it only occur when an entry is assigned a Primary Category?

Thanks