Embedding video shortcode not working

Hi there. I have an uploaded video to my wordpress host, and tried embedding the video into the page using this shortcode: [su_video url=”http://www.stuarthallmemorial.org/wp-content/uploads/2014/12/SHFoundation.mp4″%5D

http://www.stuarthallmemorial.org/test-video-2/

However, the video isn’t playing at all – on any browsers. Is this a known bug? Is there something I can do about it? Sorry, but I can’t host the video on Youtube or Vimeo due to infringing copyright claims (it’s music played at a memorial and copyright couldn’t be filed in time for the recording).

Can anyone see the problem I’m having and have any idea how to overcome it?

Thanks – Mark

https://ww.wp.xz.cn/plugins/shortcodes-ultimate/