PDF is not generating on free version

Hello there,

I made a product with as a ticket item, and bought one on my test system.

The ticket generated wonderfully on the backend, when i check on Event Tickets > Tickets, its there, but i can not download it.

When i go to the user i bought it with, i click “Download pdf ticket” and , it brings me to this link : mysite.com/wp-content/plugins/event-tickets-with-ticket-scanner/ticket/2209552622-41463-530E117E05023C85083F?pdf,
but it does not download anything, i get a blank page.