It seems the modals arent being loaded in the footer like they should be.
Most likely if they need to be enabled. Currently there are two modes, Sitewide and Per Page/Post, in v1.3 which released this weekend we add shortcodes.
Setting a modal to sitewide on its settings page will load it on every page ( good for menus, footers, sidebars etc )
Per Page/ Post options below the editor to choose which modals to load for that page / post ( best for modals needed on several pages )
Shortcode used in body of content and can contain other shortcodes. ( Best if modal is only used in one place. )