Hi! Our error message is misleading, but the problem is that this pile URL is not reachable. The next release of datasets will raise: FileNotFoundError: Unable to find 'https://the-eye.eu/public/AI/pile_preliminary_components/PUBMED_title_abstracts_2019_baseline.jsonl.zst'
I think the only solution is to use the Parquet export as suggested in How to download data from hugging face that is visible on the data viewer but the files are not available?.