[Question]: metadata

[wulaoban23-2]

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Describe your problem

I used the library configuration to configure automatic metadata, but my document kept failing to parse with an error:
10:26:16 Task has been received.
10:26:17 Page(1100000001): Start to parse.
10:26:17 Page(1100000001): Visual model detected. Attempting to enhance figure extraction...
10:26:17 Page(1100000001): Finish parsing.
10:26:17 Page(1100000001): Start to generate meta-data for every chunk ...
10:26:17 [ERROR][Exception]: 'metadata_obj'

[Magicbook1108]

1. What is your current version? Please provide a screenshot of the output from git log.
2. Also, please explain how to reproduce this issue, including the dataset configuration settings.
3. It would be even better to take a screen shot of error logs from command line interface.