When trying to download the CoNLL dataset a file not found error is raised.
from datasets import load_dataset

raw_datasets = load_dataset("conll2003")

FileNotFoundError: Couldn't find file at https://github.com/davidsbatista/NER-datasets/raw/master/CONLL2003/train.txt

I saw that David Batista removed the dataset from its original location on January 14 2022 and that may be causing the error (?).
Here is the link to his commit.