Traceback (most recent call last):


 "lbry\blob_exchange\server.py", line 103, in handle_request


 "asyncio\tasks.py", line 442, in wait_for


 "lbry\blob\blob_file.py", line 166, in sendfile


 "asyncio\base_events.py", line 1061, in sendfile


 "asyncio\base_events.py", line 1089, in _sendfile_fallback
ValueError: seek of closed file

Traceback (most recent call last):


 "/golem/entrypoints/verifier_entrypoint.py", line 15, in <module>

params['output_format'],


 "/golem/entrypoints/scripts/verifier_tools/verifier.py", line 221, in verify

make_verdict(subtask_file_paths, crops, results)


 "/golem/entrypoints/scripts/verifier_tools/verifier.py", line 132, in make_verdict

crop_data['crop']['outfilebasename'] + "metrics.txt")


 "/golem/entrypoints/scripts/verifier_tools/image_metrics_calculator.py", line 63, in calculate_metrics

PROVIDER_RESULT_CROP_NAME_PREFIX + os.path.basename(reference_crop_path)


 "/usr/local/lib/python3.6/dist-packages/PIL/Image.py", line 1917, in save

raise ValueError('unknown file extension: {}'.format(ext))
ValueError: unknown file extension: .exr
