Traceback (most recent call last):
  File "/ragflow/rag/svr/task_executor.py", line 651, in handle_task
    await do_handle_task(task)
  File "/ragflow/rag/svr/task_executor.py", line 603, in do_handle_task
    doc_store_result, _ = await trio.to_thread.run_sync(lambda: settings.docStoreConn.insert(chunks[b:b + DOC_BULK_SIZE], search.index_name(task_tenant_id), task_dataset_id))
  File "/ragflow/.venv/lib/python3.10/site-packages/trio/_threads.py", line 447, in to_thread_run_sync
    return msg_from_thread.unwrap()
  File "/ragflow/.venv/lib/python3.10/site-packages/outcome/_impl.py", line 213, in unwrap
    raise captured_error
  File "/ragflow/.venv/lib/python3.10/site-packages/trio/_threads.py", line 373, in do_release_then_return_result
    return result.unwrap()
  File "/ragflow/.venv/lib/python3.10/site-packages/outcome/_impl.py", line 213, in unwrap
    raise captured_error
  File "/ragflow/.venv/lib/python3.10/site-packages/trio/_threads.py", line 392, in worker_fn
    ret = context.run(sync_fn, *args)
  File "/ragflow/rag/svr/task_executor.py", line 603, in <lambda>
    doc_store_result, _ = await trio.to_thread.run_sync(lambda: settings.docStoreConn.insert(chunks[b:b + DOC_BULK_SIZE], search.index_name(task_tenant_id), task_dataset_id))
  File "/ragflow/rag/utils/infinity_conn.py", line 536, in insert
    real_insert_count = documents.count - delete_count
TypeError: unsupported operand type(s) for -: 'builtin_function_or_method' and 'int'