Hello, I am trying to run the cleanup scripts on my local installation but get stuck when trying to run the following: ./scripts/cleanup_datasets/cleanup_datasets.py universe_wsgi.ini -d 10 -5 -r Deleting library dataset id 7225 Traceback (most recent call last): File "./scripts/cleanup_datasets/cleanup_datasets.py", line 524, in <module> if __name__ == "__main__": main() File "./scripts/cleanup_datasets/cleanup_datasets.py", line 124, in main purge_folders( app, cutoff_time, options.remove_from_disk, info_only = options.info_only, force_retry = options.force_retry ) File "./scripts/cleanup_datasets/cleanup_datasets.py", line 247, in purge_folders _purge_folder( folder, app, remove_from_disk, info_only = info_only ) File "./scripts/cleanup_datasets/cleanup_datasets.py", line 497, in _purge_folder _purge_folder( sub_folder, app, remove_from_disk, info_only = info_only ) File "./scripts/cleanup_datasets/cleanup_datasets.py", line 497, in _purge_folder _purge_folder( sub_folder, app, remove_from_disk, info_only = info_only ) File "./scripts/cleanup_datasets/cleanup_datasets.py", line 495, in _purge_folder _purge_dataset_instance( ldda, app, remove_from_disk, info_only = info_only ) #mark a DatasetInstance as deleted, clear associated files, and mark the Dataset as deleted if it is deletable File "./scripts/cleanup_datasets/cleanup_datasets.py", line 376, in _purge_dataset_instance ( dataset_instance.__class__.__name__, dataset_instance.id, dataset_instance.dataset.id ) AttributeError: 'NoneType' object has no attribute 'id' Any help would be much appreciated. Thanks, Liisa