Help to import an bootstrap template (free) with library


I try to import different theme but everyone works great. Exemple for this one : Folio, you have different folder like bootstrap but with another one (lib) : files And also i put every files (lib) js on js folder on bootstrapstudio but the site doesn't look great Capture bootstrapstudio

I don't know how import an theme correctly, i don't found (on this forum, youtube, google ...) any tutorial to import good this one .

I need your help and mercy. Thanks for link or tutorial or video to help me or your explaination.