DRM might not be available from unsecure contexts

[Frameharmony]

Plan

Free

Country

Poland

Device

Desktop computer

Operating System

Windows 10

My Question or Issue

When I try to implement SDK environment to play music on my app, I get some errors in console:

DRM might not be available from unsecure contexts

index.js:3 Uncaught (in promise) EMEError: Platform does not support navigator.requestMediaKeySystemAccess

Invalid token scopes.

This functionality is restricted to premium users only

I wanted to ask 2 questions. Is first error bind with my localhost status, because I wanted first implement this functionality on local host, test it and then upload to product. And second question are these errors attempt because I have no premium subscription and if I buy it all will fix?

[Frameharmony]

Nobody helps me?