Figma Font not recognized

Hello,

I have issues with the Figma Font Helper, I have tried to install it in my Mac OS last version, and is not working, suddenly crashes with an error.

I have installed also the font downloading from Google but Figma doesn’t read my computer font so I cannot change the text into the project.

MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports)
Version: Big Sur 11.2.3

What can I do?