Ncp-update 1.38.5 error

I have an raspberry 4 with usb disk.
I installed NextcloudPi with version 1.38.0 somme days ago.
Now an update is available.

I try to update but I have this error:
root@nextcloudpi:/home/pi# ncp-update
Downloading updates
Performing updates
/usr/local/bin/ncp-update: ligne 23: ./ Aucun fichier ou dossier de ce type

An idea to correct this problem ?

type sudo rm /.ncp-image and try again

Yes it works now. Thank you very much.