PDF doesn’t show on mobile device

Hello,

When I embed a PDF with your plugin I got this message on mobile (iOS and Android):

This browser does not support inline PDFs. Please download the PDF to view it

Do I need to buy the pro version or there is a problem with my settings?

I use the last version of WordPress and the last version of Elementor Pro.

Thanks for your help.

The page I need help with: [log in to see the link]