Import notion folders into Trilium Notes (new user :p)

[CysteineOmni]

Hello !
I'm a new user of Trilium Note, i've just installed it on my self hosted server.
I was using Notion before, and I want to import my notes into folders like they are in Notion.
When I import the compressed file, all my notes are imported, but just in one folder, all notes are mixed.
Maybe I've missed something ?

Thanks for your help !