Shortcode and button generator are both broken

Got a default build of wordpress with nothing but Jetpack installed, using the button seems to work fine but when I click accept, nothing happens. Nothing is put into the post body.

So I tried the shortcode, which wasn’t difficult to create, but on the page it says “WordPress database error: [Unknown column ‘iwstar’ in ‘where clause’] SELECT * FROM wp_gmshc WHERE post_id = iwstar”

http://ww.wp.xz.cn/extend/plugins/google-map-shortcode/