model_final_3c3198.pkl not found

(phosa) [jalal@goku phosa]$ python demo.py --filename input/dark_bat.jpg --class_name bat
2021-03-26 16:26:27,121 INFO     Calling with args: Namespace(class_name='bat', filename='input/dark_bat.jpg', lw_collision=None, lw_depth=None, lw_inter=None, lw_inter_part=None, lw_scale=None, lw_scale_person=None, lw_sil=None, mesh_index=0, output_dir='output')
2021-03-26 16:26:30,679 INFO     Loading checkpoint from detectron2://PointRend/InstanceSegmentation/pointrend_rcnn_R_50_FPN_3x_coco/164955410/model_final_3c3198.pkl
Traceback (most recent call last):
  File "demo.py", line 145, in <module>
    main(get_args())
  File "demo.py", line 105, in main
    segmenter = get_pointrend_predictor()
  File "/scratch3/research/code/phosa/phosa/pointrend.py", line 32, in get_pointrend_predictor
    return DefaultPredictor(cfg)
  File "/scratch3/venv/phosa/lib64/python3.6/site-packages/detectron2/engine/defaults.py", line 188, in __init__
    checkpointer.load(cfg.MODEL.WEIGHTS)
  File "/scratch3/venv/phosa/lib64/python3.6/site-packages/fvcore/common/checkpoint.py", line 141, in load
    assert os.path.isfile(path), "Checkpoint {} not found!".format(path)
AssertionError: Checkpoint detectron2://PointRend/InstanceSegmentation/pointrend_rcnn_R_50_FPN_3x_coco/164955410/model_final_3c3198.pkl not found!