Sorry for the delay @piluc88, could you try to do the following:
The issue is that the update will be migrating over to systemd for better handling of applications services. Thus, it will now search for various .lock files that match your installed applications. You will need to create the .lock files for each application you already have installed on your system. Thus, Plex would have a
.plex.lock file, BTSync would have a
.btsync.lock file, etc etc.