ifx var error

run_speech_recognition_ctc.py

@@ -456,7 +456,7 @@ def main():
                             new_dataset
                         ]
                     )
-                    min_columns_train = common_cols(min_columns, new_dataset.column_names)
+                    min_columns_train = common_cols(min_columns_train, new_dataset.column_names)
             else:
                 logging.warning(f"{dataset_name} {dataset_config_name} as split is {train_split_name}")