Error in testing WideAndDeepRecommender model trained in Azure ML Designer

Question

We have trained the recommendation model using WideAndDeepRecommender model in the Azure ML Designer and deployed the model in the AKS cluster. As we know the Azure WideAndDeepRecommender we can have two different types of the score

1. Predict ratings

Recommend items

While we pass the test data to WideAndDeepRecommender model deployed in the AKS cluster We can predict the Predict ratings for giving input but unable to predict the Recommend items While we predict the Recommended items we are facing the below error

2023-06-09 09:22:15,326 E [65] azmlinfsrv - Encountered Exception: Traceback (most recent call last): File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/azureml_inference_server_http/server/user_script.py", line 130, in invoke_run run_output = self._wrapped_user_run(**run_parameters, request_headers=dict(request.headers)) File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/azureml_inference_server_http/server/user_script.py", line 154, in self._wrapped_user_run = lambda request_headers, **kwargs: self._user_run(**kwargs) File "/structure/azureml-app/deployment_source_directory/score.py", line 42, in run result_dfd, = ScoreWideAndDeepRecommenderModule().run(**score_params) File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/azureml/designer/modules/recommendation/dnn/common/entry_utils.py", line 44, in wrapper return func(obj, **kwargs) File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/azureml/designer/modules/recommendation/dnn/wide_and_deep/score/score_wide_and_deep_recommender.py", line 141, in run scorer = scorer_class( File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/azureml/designer/modules/recommendation/dnn/wide_and_deep/score/wide_and_deep_scorers.py", line 350, in init self.predictions_buffer = pd.DataFrame({}, columns=[USER_COLUMN, ITEM_COLUMN, SCORED_RATING]) File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/pandas/core/frame.py", line 435, in init mgr = init_dict(data, index, columns, dtype=dtype) File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/pandas/core/internals/construction.py", line 239, in init_dict val = construct_1d_arraylike_from_scalar(np.nan, len(index), nan_dtype) File "/azureml-envs/azureml_92cded412e113f8d82c9a5108fbe8109/lib/python3.8/site-packages/pandas/core/dtypes/cast.py", line 1440, in construct_1d_arraylike_from_scalar dtype = dtype.dtype

Please provide your thought on it and feel free to ask any questions Thanks in advance.