Error while parsing a pdf

[xpilasneo4j]

What can I do to prevent that?
Using OpenAI, I give a pdf and a schema and no data is inserted as I get this error

ERROR:neo4j_graphrag.experimental.components.kg_writer:{code: Neo.ClientError.Statement.TypeError} {message: Property values can only be of primitive types or arrays thereof. Encountered: Map{2023 -> String("97709"), 2022 -> String("5575"), 2021 -> String("18788")}.}
neo4j.exceptions.GqlError: {gql_status: 22N01} {gql_status_description: error: data exception - invalid type. Expected the value Map{2023 -> String("97709"), 2022 -> String("5575"), 2021 -> String("18788")} to be of type BOOLEAN, STRING, INTEGER, FLOAT, DATE, LOCAL TIME, ZONED TIME, LOCAL DATETIME, ZONED DATETIME, DURATION or POINT, but was of type MAP NOT NULL.} {message: 22N01: Expected the value Map{2023 -> String("97709"), 2022 -> String("5575"), 2021 -> String("18788")} to be of type BOOLEAN, STRING, INTEGER, FLOAT, DATE, LOCAL TIME, ZONED TIME, LOCAL DATETIME, ZONED DATETIME, DURATION or POINT, but was of type MAP NOT NULL.} {diagnostic_record: {'_classification': 'CLIENT_ERROR', 'OPERATION': '', 'OPERATION_CODE': '0', 'CURRENT_SCHEMA': '/'}} {raw_classification: CLIENT_ERROR}

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j_graphrag\experimental\components\kg_writer.py", line 212, in run
    self._upsert_nodes(batch, lexical_graph_config)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j_graphrag\experimental\components\kg_writer.py", line 159, in _upsert_nodes
    self.driver.execute_query(
    ~~~~~~~~~~~~~~~~~~~~~~~~~^
        query,
        ^^^^^^
        parameters_=parameters,
        ^^^^^^^^^^^^^^^^^^^^^^^
        database_=self.neo4j_database,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\driver.py", line 970, in execute_query
    return session._run_transaction(
           ~~~~~~~~~~~~~~~~~~~~~~~~^
        access_mode,
        ^^^^^^^^^^^^
    ...<3 lines>...
        {},
        ^^^
    )
    ^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\work\session.py", line 583, in _run_transaction
    result = transaction_function(tx, *args, **kwargs)
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\driver.py", line 1307, in _work
    return transformer(res)
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\work\result.py", line 802, in to_eager_result
    self._buffer_all()
    ~~~~~~~~~~~~~~~~^^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\work\result.py", line 459, in _buffer_all
    self._buffer()
    ~~~~~~~~~~~~^^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\work\result.py", line 448, in _buffer
    for record in self:
                  ^^^^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\work\result.py", line 398, in __iter__
    self._connection.fetch_message()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\io\_common.py", line 184, in inner
    func(*args, **kwargs)
    ~~~~^^^^^^^^^^^^^^^^^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\io\_bolt.py", line 864, in fetch_message
    res = self._process_message(tag, fields)
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\io\_bolt5.py", line 1208, in _process_message
    response.on_failure(summary_metadata or {})
    ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\XavierPilas\AppData\Roaming\Python\Python313\site-packages\neo4j\_sync\io\_common.py", line 254, in on_failure
    raise self._hydrate_error(metadata)
neo4j.exceptions.CypherTypeError: {code: Neo.ClientError.Statement.TypeError} {message: Property values can only be of primitive types or arrays thereof. Encountered: Map{2023 -> String("97709"), 2022 -> String("5575"), 2021 -> String("18788")}.}
DEBUG:neo4j_graphrag.experimental.pipeline.pipeline:TASK FINISHED writer in 1.483685900006094 res={'status': <RunStatus.DONE: 'DONE'>, 'result': {'status': 'FAILURE', 'metadata': {'error': '{code: Neo.ClientError.Statement.TypeError} {message: Property values can only be of primitive types or arrays thereof. Encountered: Map{2023 -> String("97709"), 2022 -> String("5575"), 2021 -> String... (12 chars)'}}, 'timestamp': datetime.datetime(2025, 8, 19, 7, 58, 27, 795148, tzinfo=datetime.timezone.utc)}
DEBU