Problem with dynamic data

Hy,
Before buying Graphina I wanted to try the Pro version with API dynamic data.

I have a URL like this :

https://api.xxxx.com/test/?token_idxxxxxx

But I haven’t goy no result yet And i’m sure that my url is good.

On another plug-in called ??visualiser?? it’s also working

Can you give an update on the test for the demo version

Thanks