(Only works when my PC is on so keep trying) also open it in your browser (works best with Firefox) as it sometimes doesn’t work just by clicking the link inside kik / WhatsApp etc but give it a try).
If your on a phone, Click the 3 dots bottom left and choose safari if on iPhone. Probably similar for Android ? (Or copy and paste the link).
Make your on file server http://www.sharing-file.com/