Problem: Error while preparing query<br>SELECT ID,title AS chapter,perex,content
                FROM (SELECT audience_chapters.* FROM msk_book_chapters audience_chapters WHERE (audience_chapters.minimum_audience IS NULL OR audience_chapters.minimum_audience = 0) AND EXISTS (SELECT 1 FROM msk_books audience_books WHERE audience_books.book_id = audience_chapters.book_id AND audience_books.language = audience_chapters.language AND audience_books.minimum_audience = 0)) AS msk_book_chapters
               WHERE mainswitch = 1
                 AND production = 1
                 AND language = ""
                 AND book_id = 
            ORDER BY position ASC

<br>Type of error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ORDER BY position ASC' at line 7