Impossible to sign into launchpad

[pqwoerituytrueiwoq]

I am using xubuntu and i wanted to use the live kernel update feature because I rarely reboot my system
Well sadly it is not possible to sign into launchpad on xubuntu in software-properties-gtk
I tried installing gnome-control-center and that did make the button work, but the application is empty, the window has no content

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: software-properties-gtk 0.96.24.32.1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue May 1 13:50:05 2018
InstallationDate: Installed on 2018-04-29 (2 days ago)
InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
SourcePackage: software-properties
UpgradeStatus: No upgrade log present (probably fresh install)

[Andrea Azzarone (azzar1)]

What if you click the "Sign in..." list button?

[Launchpad Janitor (janitor)]

[Expired for software-properties (Ubuntu) because there has been no activity for 60 days.]