Lutris don´t start

Lutris don´t start. I have OpenSUSE 42.3 (x86_64) and i am using KDE, i installed Lutris from http://download.opensuse.org/repositories/games:/tools/openSUSE_Leap_42.3/. Here is the output.

lain@linux-k6d9:~> lutris

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:68:35: The style property GtkButton:child-displacement-x is deprecated and shouldn’t be used anymore. It will be removed in a future version

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:69:35: The style property GtkButton:child-displacement-y is deprecated and shouldn’t be used anymore. It will be removed in a future version

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:73:46: The style property GtkScrolledWindow:scrollbars-within-bevel is deprecated and shouldn’t be used anymore. It will be removed in a future version
2019-03-16 11:33:26,674: GLib.set_option_context_summary missing, was added in GLib 2.56 (Released 2018-03-12)
2019-03-16 11:33:26,677: Running Lutris 0.5.0.1
2019-03-16 11:33:26,679: Using NVIDIA drivers 390.116 for x86_64
2019-03-16 11:33:26,679: GPU: GeForce GTX 1060 6GB
2019-03-16 11:33:26,679: GPU: 10DE:1C03 10B0:1C03 using nvidia drivers
2019-03-16 11:33:26,697: Vulkan is supported
2019-03-16 11:33:26,698: Updating DXVK versions

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:68:35: The style property GtkButton:child-displacement-x is deprecated and shouldn’t be used anymore. It will be removed in a future version

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:69:35: The style property GtkButton:child-displacement-y is deprecated and shouldn’t be used anymore. It will be removed in a future version

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:71:36: The style property GtkCheckMenuItem:indicator-size is deprecated and shouldn’t be used anymore. It will be removed in a future version

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:73:46: The style property GtkScrolledWindow:scrollbars-within-bevel is deprecated and shouldn’t be used anymore. It will be removed in a future version

(lutris:5372): Gtk-WARNING **: Theme parsing error: gtk.css:76:30: The style property GtkExpander:expander-size is deprecated and shouldn’t be used anymore. It will be removed in a future version
Traceback (most recent call last):
File “/usr/lib/python3.4/site-packages/lutris/gui/application.py”, line 175, in do_activate
self.window = LutrisWindow(application=self)
File “/usr/lib/python3.4/site-packages/lutris/gui/lutriswindow.py”, line 125, in init
self.game_panel = GenericPanel(application=self.application)
File “/usr/lib/python3.4/site-packages/lutris/gui/views/generic_panel.py”, line 45, in init
self.set_background()
File “/usr/lib/python3.4/site-packages/lutris/gui/views/generic_panel.py”, line 62, in set_background
b"background-repeat: no-repeat; }" % bg_path.encode(“utf-8”)
TypeError: unsupported operand type(s) for %: ‘bytes’ and ‘bytes’
Traceback (most recent call last):
File “/usr/lib/python3.4/site-packages/lutris/gui/application.py”, line 333, in do_command_line
self.window.present()
AttributeError: ‘NoneType’ object has no attribute ‘present’

Can you please help me. Do you need further information ?