UPDATE: This may not be a Hiawatha problem after all. I get a similar, but not exactly the same, error when installing wp with nginx.
I ran a DB check after a reinstall with Hiawatha and all is in order.
The wp_users table is okay.
The wp_usermeta table is okay.
The wp_posts table is okay.
The wp_comments table is okay.
The wp_links table is okay.
The wp_options table is okay.
The wp_postmeta table is okay.
The wp_terms table is okay.
The wp_term_taxonomy table is okay.
The wp_term_relationships table is okay.
The wp_termmeta table is okay.
The wp_commentmeta table is okay.
Repairs complete. Please remove the following line from wp-config.php to prevent this page from being used by unauthorized users.
define('WP_ALLOW_REPAIR', true);