I get an error on several articles to the effect of: invalid ipfs path: invalid path "/ipfs/undefined/2107.00648.pdf": invalid CID: expected 1 as the cid versi

I get an error on several articles to the effect of: invalid ipfs path: invalid path "/ipfs/undefined/2107.00648.pdf": invalid CID: expected 1 as the cid version number, got: 31965309853