KeyError: '"-5KQ66BBWC4'," -5KQ66BBWC4"is the one of name of video

when i train the model,it will pesents this issue.
[09/17 06:46:34][INFO] ava_helper.py: 110: Number of unique boxes: 2204
[09/17 06:46:34][INFO] ava_helper.py: 111: Number of annotations: 7089
Traceback (most recent call last):
File "tools/run_net.py", line 44, in
main()
File "tools/run_net.py", line 25, in main
launch_job(cfg=cfg, init_method=args.init_method, func=train)
File "/home/yanzhouquan/code/slowfast/SlowFast/slowfast/utils/misc.py", line 311, in launch_job
func(cfg=cfg)
File "/home/yanzhouquan/code/slowfast/SlowFast/tools/train_net.py", line 429, in train
train_loader = loader.construct_loader(cfg, "train")
File "/home/yanzhouquan/code/slowfast/SlowFast/slowfast/datasets/loader.py", line 109, in construct_loader
dataset = build_dataset(dataset_name, cfg, split)
File "/home/yanzhouquan/code/slowfast/SlowFast/slowfast/datasets/build.py", line 31, in build_dataset
return DATASET_REGISTRY.get(name)(cfg, split)
File "/home/yanzhouquan/code/slowfast/SlowFast/slowfast/datasets/ava_dataset.py", line 47, in __init__
self._load_data(cfg)
File "/home/yanzhouquan/code/slowfast/SlowFast/slowfast/datasets/ava_dataset.py", line 69, in _load_data
boxes_and_labels = [
File "/home/yanzhouquan/code/slowfast/SlowFast/slowfast/datasets/ava_dataset.py", line 70, in
boxes_and_labels[self._video_idx_to_name[i]]
KeyError: '"-5KQ66BBWC4'