This topic: http://drupal.org/node/304866 makes me believe that the database schema for the book module did not get updated from version 5 to version 6 when I upgraded.
Container pages now display this error:
user warning: Unknown column 'b.bid' in 'field list' query: SELECT b.bid, ml.* FROM book b INNER JOIN menu_links ml ON b.mlid = ml.mlid WHERE b.nid = 40 in /home/ccag/public_html/sites/all/modules/category/wrappers/book/book.module on line 239.
Child category pages display this error:
user warning: Unknown column 'b.bid' in 'field list' query: SELECT b.bid, ml.* FROM book b INNER JOIN menu_links ml ON b.mlid = ml.mlid WHERE b.nid = 254 in /home/ccag/public_html/sites/all/modules/category/wrappers/book/book.module on line 239.
The recommended solution in that thread is to "reinstall the book module".
Does that sound like the solution for the above errors; if so, how do I go about reinstalling the book module?