Plank crashes on startup

[Héctor Pavez Vásquez]

Plank version: 0.11.4
Distribution: Linux 4.9.94-1-MANJARO x86_64
window-manager: xfce4

When I try to start it with the command:

$ plank -d

It returns the following:

[INFO 23: 17: 01.156661] [AbstractMain: 229] Plank version: 0.11.4
[INFO 23: 17: 01.156727] [AbstractMain: 230] Kernel version: 4.9.94-1-MANJARO
[INFO 23: 17: 01.156781] [AbstractMain: 231] GLib version: 2.56.1 (2.50.3)
[INFO 23: 17: 01.156833] [AbstractMain: 234] GTK + version: 3.22.29 (3.22.10)
[INFO 23: 17: 01.156878] [AbstractMain: 237] Wnck version: 3.20.1
[INFO 23: 17: 01.156937] [AbstractMain: 238] Cairo version: 1.15.12
[INFO 23: 17: 01.156981] [AbstractMain: 239] Pango version: 1.42.1
[INFO 23: 17: 01.157026] [AbstractMain: 241] + Cairo / Gtk + HiDPI support enabled
[INFO 23: 17: 01.157069] [AbstractMain: 247] + XInput Barriers support enabled
[WARN 23: 17: 01.157120] [Environment: 161] XDG_SESSION_CLASS not set in this environment!
**
Wnck: ERROR: xutils.c: 2320: default_icon_at_size: assertion failed: (base)
Aborted (`core 'generated)