tlqnguyen:

Error: Destination path '/home/user/.cache/huggingface/transformers/transformers' already exists


It seems you already have /home/user/.cache/huggingface/transformers/transformers, and transformers v4 tried to make ~/.cache/huggingface/transformers and failed.
How about mv (rename) the /home/user/.cache/huggingface/transformers/ to some temporary name and retry import transformers? (If I were you, I would not delete the directory, but rename it and keep it for now, just in case.)