postprocess error for ERSSTv5_regrid

[premmom6]

postprocess(sst_ERSSTv5_regrid, new=True)
Process None from ERSSTv5

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Traceback (most recent call last):
File "", line 1, in
File "/home/psg/NINO/ninolearn-0.1/ninolearn/preprocess/anomaly.py", line 220, in postprocess
toProcessedDir(data, new)
File "/home/psg/NINO/ninolearn-0.1/ninolearn/preprocess/anomaly.py", line 148, in toProcessedDir
filename = generateFileName(data.name, dataset=data.dataset, suffix='nc')
File "/home/psg/NINO/ninolearn-0.1/ninolearn/utils.py", line 47, in generateFileName
filename = ','.join(filenamelist)
TypeError: sequence item 0: expected str instance, NoneType found

postprocess(str(sst_ERSSTv5_regrid), new=True)
Traceback (most recent call last):
File "", line 1, in
File "/home/psg/NINO/ninolearn-0.1/ninolearn/preprocess/anomaly.py", line 219, in postprocess
small_print_header(f"Process {data.name} from {data.dataset}")
AttributeError: 'str' object has no attribute 'name'