How to make dropbox sync

From the Dropbox help:

1.Stop Dropbox on the PC

2. In a termina write: 

1. sudo chown "$USER" "$HOME"
   sudo chown -R "$USER" ~/Dropbox ~/.dropbox
   sudo chattr -R -i ~/Dropbox
   sudo chmod -R u+rw ~/Dropbox ~/.dropbox

   
   where Dropbox is the name of your dropbox folder 

3. Restart Dropbox 

Odd virtual machine error

Just tried to start my virtual machine and got this odd error:

Error starting domain: Failed to connect socket to '/var/run/libvirt/virtlogd-sock': No such file or Directory

I have no idea where it came from, since I haven't used my virtual machine for a month. In any case, the solution was very simple:

$ systemctl start virtlogd.socket

And then restart the virtual machine manager. 

Now it works: