Advice please regarding token swap

Hello all,

First off I’m sure this has been asked before and I apologise already. I’ve googled a bit and come up stumped it looks like I needed to transfer my nuls at some point from an erc20 token to nuls. I never saw this and now can’t move them out of my ledger. Is there anything I can now do it is literally only 48Nuls so it’s not a huge amount but I’d like to move them and update if possible. Or are these tokens lost forever.

Thanks for any help.