Issue with URL Shortcode Tracker

I’ve installed and activated the shortcode plugin by uploading the zip file. Shortcode Tracker - Matomo Plugins Marketplace
When I goto shortcode -> generate shortcode, all I get is ‘/’ followed by 6 alphanumeric characters. example - /fe5fd9
What should I add as a prefix to this? I’ve already tried my Matomo instance’s URL.
https://mypiwikurl.com/fe5fd9 gives me a 404 error - Not Found The requested URL /fe5fd9 was not found on this server.
Am I missing something? Any idea how to make this work?

Hi,

The Marketplace page is missing the full documentation on how to set it up. You can read the full docs here: