Error writing to file descriptor: No space left on device

1

Hello, I have created a flatpak bundle. When I try to install it on another computer, I get this error message

Error writing to file descriptor: No space left on device

What could be the origin?

2

A bit more details:
I have already created bundle for this app in the past and I can install it without any problem.
Here is the manifest

{
    "app-id": "org.flatpak.MyApp",
    "runtime": "org.kde.Platform",
    "runtime-version": "5.15-22.08",
    "sdk": "org.kde.Sdk",
    "base": "io.qt.qtwebengine.BaseApp",
    "base-version": "5.15-22.08",
    "command": "MyApp",
    "finish-args": [
        "--share=ipc",
        "--share=network",
        "--socket=fallback-x11",
        "--socket=wayland",
        "--filesystem=host",
        "--device=dri",
	"--env=QTWEBENGINEPROCESS_PATH=/app/bin/QtWebEngineProcess"
    ],
    "modules": [
        {
            "name": "MyApp",
            "buildsystem": "cmake",
            "builddir": true,
            "config-opts": [
	        "-DCMAKE_BUILD_TYPE=RelWithDebInfo"
	    ],
            "sources": [
                {
                    "type": "dir",
                    "path": "../"
                }
            ]
        }
    ]
}

Previously, I used “base-version”: “5.15-21.08” instead. So when I want to update to “5.15-22.08”, I get this error.
However I still have a lot of space on the hard-drive (> 100 Gio).

Also, I try to install MyApp using

flatpak --user install MyApp.flatpak

So, I expect MyApp is installed in $HOME, not elsewhere.