JSONDecodeError: Expecting value: line 1 column 1 (char 0) in my CSV file (converted from .xlsx)

[greasyf]

JSONDecodeError: Expecting value: line 1 column 1 (char 0)
Traceback:
File "C:\Projects\langchain_csv_1\venv\Lib\site-packages\streamlit\runtime\scriptrunner\script_runner.py", line 552, in run_script
exec(code, module.dict)
File "C:\Projects\langchain_csv_1\interface.py", line 72, in
decoded_response = decode_response(response)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Projects\langchain_csv_1\interface.py", line 17, in decode_response
return json.loads(response)
^^^^^^^^^^^^^^^^^^^^
File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\json_init.py", line 346, in loads
return _default_decoder.decode(s)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None