Parrot os KDE Lutris wont launch

Lutris wont launch
2020-05-12 23:43:52,138: Running Lutris 0.5.1.3
2020-05-12 23:43:52,150: Using nouveau
2020-05-12 23:43:52,151: Running Mesa driver 19.3.3 on NV137 (0x1c82)
2020-05-12 23:43:52,151: GPU: 10DE:1C82 1458:3764 using nouveau drivers
2020-05-12 23:43:52,183: Vulkan is not available or your system isn’t Vulkan capable
2020-05-12 23:43:52,184: Updating DXVK versions

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/lutris/gui/application.py", line 172, in do_activate
    self.window = LutrisWindow(application=self)
  File "/usr/lib/python3/dist-packages/lutris/gui/lutriswindow.py", line 100, in __init__
    self.game_store = self.get_store()
  File "/usr/lib/python3/dist-packages/lutris/gui/lutriswindow.py", line 287, in get_store
    game_store = GameStore(
  File "/usr/lib/python3/dist-packages/lutris/gui/views/store.py", line 117, in __init__
    self.modelsort = Gtk.TreeModelSort.sort_new_with_model(self.modelfilter)
AttributeError: type object 'TreeModelSort' has no attribute 'sort_new_with_model'
Traceback (most recent call last):```
  File "/usr/lib/python3/dist-packages/lutris/gui/application.py", line 335, in do_command_line
    self.window.present()
AttributeError: 'NoneType' object has no attribute 'present'

this is the same problem i also was facing, but unfortunately i could not find any solution BUT you should try using propritary drivers & install from this link https://lutris.net/downloads/ (debian installation). im not sure if this is the solution but worth a try.