Troubleshooting Style Guide Import Issues in Figma Free Trial

I have just started my 7 day trial and watched all the tutorials. When I import my wireframe the style guide is not imported. To the same question you answered shortly "duplicate our style guide". Ok, I duplicated it and now? I also asked chatGPT and hit has no clue either. Is it because I am using the free version of figma? Can you answer the question in more detail, please?