Error while adding pattern

[OliverJPost]

Python: Traceback (most recent call last):
  File "C:\Users\m84284777\AppData\Roaming\Blender Foundation\Blender\3.3\scripts\addons\HumGen3D\human\clothing\operators.py", line 71, in execute
    human.clothing.outfit.pattern.set_random(obj, context)
  File "C:\Users\m84284777\AppData\Roaming\Blender Foundation\Blender\3.3\scripts\addons\HumGen3D\common\decorators.py", line 92, in wrapper
    return func(*args, **kwargs)
  File "C:\Users\m84284777\AppData\Roaming\Blender Foundation\Blender\3.3\scripts\addons\HumGen3D\human\clothing\pattern.py", line 74, in set_random
    self.set(chosen, obj)
  File "C:\Users\m84284777\AppData\Roaming\Blender Foundation\Blender\3.3\scripts\addons\HumGen3D\human\clothing\pattern.py", line 56, in set
    img_node = mat.node_tree.nodes["HG_Pattern"]  # type:ignore
KeyError: 'bpy_prop_collection[key]: key "HG_Pattern" not found'