Radar Chart with Formidable Pro

I’ve used the short code for wp chart to try and generate a radar chart from a formidable form.
The help from:
https://imnotmarvin.com/better-graphs-and-charts-for-formidable-pro-with-wp-charts/
Fails to work on my page.
Does anyone have any idea, or able to offer another solution?

https://www.ads-software.com/plugins/wp-charts/