How to load local SEC file into the my local database?

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I am attempting to insert my SEC document into my local database. Following the instructions in python upsert_db_sec_documents.py, I created a "data" folder within the "scripts" directory. However, I am encountering the following error.
(llama-app-backend-py3.11) root@codespaces-d90123:/workspaces/sec-insights/backend# cd scripts/ (llama-app-backend-py3.11) root@codespaces-d90123:/workspaces/sec-insights/backend/scripts# python upsert_db_sec_documents.py Upserting docs from filings: 0%| | 0/4 [00:00<?, ?it/s]Symbol symbol not found in stocks_dict. Skipping. Symbol symbol not found in stocks_dict. Skipping. Symbol symbol not found in stocks_dict. Skipping. Symbol symbol not found in stocks_dict. Skipping.

I checked the document table in the llama_app_db database within my Docker container, and there is no data in it. Could you please tell me how to successfully upload SEC files?”