Recognize app does not regroup faces

I have Nextcloud 27.0.2 installed with docker. It is working well without SSL (I use it only locally)
I installed recognize 4.3.2. It seams to work and found almost 5000 faces, but never classify them (last attempt : never).
I tried to launch the command occ recognize:cluster-faces but I have for result [object Object].
Node.js and Tensorflow WASM are working (following the admin panel).
Do you have any solution ?
Thank you