Nordpass installation issue

This is my first post here, i’m french.
Sorry if my english is not suffisant.

I have installed Nordpass as user with flatpak.
The result of the command “flatpak list” is :
flatpak list
Name Application ID Version Branch Installation
NordPass Password Manager com.nordpass.NordPass 4.27.16 stable system
Freedesktop Platform org.freedesktop.Platform 21.08.14 21.08 system
Mesa org.freedesktop.Platform.GL.default 21.3.8 21.08 system
openh264 org.freedesktop.Platform.openh264 2.1.0 2.0 system

But when i run " flatpak run com.nordpass.Nordpass", the result is :
error: app/com.nordpass.Nordpass/x86_64/master not installed

Please, could anyone explain where is the problem ?
I don’t find anything that help.

Thanks in advance

Can you launch it with menu icon?