Youtube data doesn't work with preprocessing

[longshuicy]

{"ERROR":{"message":""['_source.id_str'] not in index"","traceback":"Traceback (most recent call last):\n File "./rabbitmq_handler.py", line 45, in rabbitmq_handler\n output = algorithm(df, params)\n File "/scripts/algorithm.py", line 17, in algorithm\n PP = Preprocess(df, params['column'])\n File "/scripts/preprocessing.py", line 31, in init\n df_new = df[df[column] != ''][[self.id_column, column]].dropna()\n File "/usr/local/lib/python3.7/site-packages/pandas/core/frame.py", line 3464, in getitem\n indexer = self.loc._get_listlike_indexer(key, axis=1)[1]\n File "/usr/local/lib/python3.7/site-packages/pandas/core/indexing.py", line 1314, in _get_listlike_indexer\n self._validate_read_indexer(keyarr, indexer, axis)\n File "/usr/local/lib/python3.7/site-packages/pandas/core/indexing.py", line 1377, in _validate_read_indexer\n raise KeyError(f"{not_found} not in index")\nKeyError: "['_source.id_str'] not in index"\n"}}