我在训练tinypose128x96时报了错，具体错误如下：

Traceback (most recent call last):
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/threading.py", line 926, in _bootstrap_inner
self.run()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dataloader/dataloader_iter.py", line 536, in _thread_loop
batch = self._get_data()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dataloader/dataloader_iter.py", line 674, in _get_data
batch.reraise()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dataloader/worker.py", line 172, in reraise
raise self.exc_type(msg)
cv2.error: DataLoader worker(0) caught error with message:
Traceback (most recent call last):
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dataloader/worker.py", line 339, in _worker_loop
batch = fetcher.fetch(indices)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dataloader/fetcher.py", line 125, in fetch
data.append(self.dataset[idx])
File "/home/aistudio/PaddleDetection/ppdet/data/source/keypoint_coco.py", line 379, in __getitem__
records['image'] = cv2.cvtColor(records['image'], cv2.COLOR_BGR2RGB)
cv2.error: OpenCV(4.6.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

W0501 11:55:40.249200 4020 gpu_resources.cc:91] device: 0, cuDNN Version: 8.2.
Traceback (most recent call last):
File "tools/train.py", line 172, in
main()
File "tools/train.py", line 168, in main
run(FLAGS, cfg)
File "tools/train.py", line 132, in run
trainer.train(FLAGS.eval)
File "/home/aistudio/PaddleDetection/ppdet/engine/trainer.py", line 453, in train
for step_id, data in enumerate(self.loader):
File "/home/aistudio/PaddleDetection/ppdet/data/reader.py", line 209, in __next__
return next(self.loader)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dataloader/dataloader_iter.py", line 745, in __next__
self._reader.read_next_list()[0])
SystemError: (Fatal) Blocking queue is killed because the data reader raises an exception.
[Hint: Expected killed_ != true, but received killed_:1 == true:1.] (at /paddle/paddle/fluid/operators/reader/blocking_queue.h:175)

请问应该如何解决，望各位可以帮我解惑，谢谢