Product Type Book (by moku)

[billc108]

I get this error message when I click on author:

[select from where manufacturers_id = 2]

... how can I fix this?

The form of a select statement in SQL is typically

select from (table name)
where manufacturers_id = 2

or possibly

select from *
where manufacturers_id = 2

where the "*" is a wildcard.
It appears that you're not stating where you're selecting FROM.

Hope that helps. I've only just started looking into the product book type for possible rebuild of an online bookstore, so I'm not at all familiar with the files.