MachineLearningNotebooks: Error: The input data is empty. Ensure data correctness and availability.

I have the following code, and I am very sure the dataset is not empy!

workspace = Workspace(subscription_id, resource_group, workspace_name)

dstraining_datasensor1 = Dataset.get_by_name(workspace, name='sensor1')


from azureml.automl.core.forecasting_parameters import ForecastingParameters

forecasting_parametersSensor1 = ForecastingParameters(time_column_name='EventEnqueuedUtcTime', 
                                               forecast_horizon=5,
                                               time_series_id_column_names=["eui"],
                                               freq='H',
                                               target_lags='auto',
                                               target_rolling_window_size=10)


from azureml.core.workspace import Workspace
from azureml.core.experiment import Experiment
from azureml.train.automl import AutoMLConfig
from azureml.core.compute import ComputeTarget, AmlCompute
import logging

amlcompute_cluster_name = "computecluster"
compute_target = ComputeTarget(workspace=ws, name=amlcompute_cluster_name)
experiment_name = 'iot-forecast'

experiment = Experiment(ws, experiment_name)

automl_configSensor1 = AutoMLConfig(task='forecasting',
                             primary_metric='normalized_root_mean_squared_error',
                             experiment_timeout_minutes=100,
                             enable_early_stopping=True,
                             training_data=dstraining_datasensor1,
                             compute_target = compute_target,
                             label_column_name='TempC_DS',
                             n_cross_validations=5,
                             enable_ensembling=False,
                             verbosity=logging.INFO,
                             forecasting_parameters=forecasting_parametersSensor1)

remote_run = experiment.submit(automl_configSensor1, show_output=True)

However after some minutes, in the experiment I get this:

Status Failed  Error: The input data is empty. Ensure data correctness and availability.

I checked the dataset and its definitely not empty