Possible bug for weekly calendar display?

Can someone test a potential bug for this plugin. If you have events+ and install the weekly plugin (through the events settings)

using the shortcode on a given page
[weekly_event_calendar]
should display a weekly calendar. Everything is dandy till you change the page's parent page from none to another a chosen page , for example, if you set this weekly-calendar page to be the child page of the "Events Page", you'll get a 404 or not found page. Can anyone test this out to see if it's just on my side or indeed a bug?

Thanks,
-Anthony