AssertionError: Config file does not exist

Question

I am trying to run TextFuseNet by cloning the project into my google colab file. But when i wanted one of demos its giving me following error:

Arguments: Namespace(confidence_threshold=0.5, 
config_file='configs/quick_schedules/e2e_mask_rcnn_R_50_FPN_inference_acc_test.yaml', 
input=None, opts=[], output=None, video_input=None, webcam=False)
Traceback (most recent call last):
File "demo/demo.py", line 71, in <module>
cfg = setup_cfg(args)
File "demo/demo.py", line 23, in setup_cfg
cfg.merge_from_file(args.config_file)
File "/usr/local/lib/python3.7/dist-packages/detectron2/config/config.py", line 45, in 
merge_from_file
assert PathManager.isfile(cfg_filename), f"Config file '{cfg_filename}' does not exist!"
AssertionError: Config file 
'configs/quick_schedules/e2e_mask_rcnn_R_50_FPN_inference_acc_test.yaml' does not exist!

The above error appears when i want to run one of my demo file named "icdar2013_detection.py"

GitHub link for my project.

Here is my google colab file that i am running.