[SmartCrawl Pro] wds-metabox.js Javascript error

When we attempt to load a page or post to edit, the smartcrawl panel shows a continuously spinning daisy wheel next to the SEO tab.

New pages/posts created fail to auto-populate the meta data under the "edit meta" area of this panel.

Looking at my browser's developer tools, I see the following js error:

wds-metabox.js?ver=2.2.5:132 Uncaught TypeError: Cannot read property 'server' of undefined

at is_edited_post_dirty (wds-metabox.js?ver=2.2.5:132)

at refresh_preview (wds-metabox.js?ver=2.2.5:389)

at handle_page_load (wds-metabox.js?ver=2.2.5:192)

at dispatch (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-widget,jquery-ui-position,jquery-ui-core,underscore,moxiejs,plupload&ver=630f97c0c5f20c16e02a21a1032ac2f7:3)

at r.handle (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-widget,jquery-ui-position,jquery-ui-core,underscore,moxiejs,plupload&ver=630f97c0c5f20c16e02a21a1032ac2f7:3)