新手小白，刚安装跑测试数据集，一直是这个KeyError: 'cells'错误怎么解决？
[2023/05/02 13:33:17] ppocr ERROR: When parsing line 20230419_2/Image_20230413152643560.bmp [{"transcription": "待识别", "points": [[3400, 2602], [3696, 2602], [3696, 2958], [3400, 2958]], "difficult": false}]
, error happened with msg: Traceback (most recent call last):
File "C:\Users\Administrator\PaddleOCR\ppocr\data\simple_dataset.py", line 138, in __getitem__
outs = transform(data, self.ops)
File "C:\Users\Administrator\PaddleOCR\ppocr\data\imaug\__init__.py", line 56, in transform
data = op(data)
File "C:\Users\Administrator\PaddleOCR\ppocr\data\imaug\label_ops.py", line 688, in __call__
cells = data['cells']
KeyError: 'cells'

事实上我啥也没干，只是标注直接套官方配置文件跑。谁能告诉我这个错误怎么解决？