[Plugin: Connections] No entry error

When there is no entry in a category 5 and I use shortcode [connections_list category=5] I get this error:
WordPress database 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 'NONE'') ) UNION (SELECT *,group_nameASsort_column` FROM socio_c’ at line 1]
(SELECT *, organization AS sort_column FROM socio_connections WHERE last_name = ” AND group_name = ” AND id IN (”NONE”) ) UNION (SELECT *, group_name AS sort_column FROM socio_connections WHERE group_name != ” AND id IN (”NONE”) ) UNION (SELECT *, last_name AS sort_column FROM socio_connections WHERE last_name != ” AND id IN (”NONE”) ) ORDER BY sort_column, last_name, first_name`

http://wordpress.org/extend/plugins/connections/