posw in ledger nano s

[Antonioz]

hello there, over a year ago I made a fairly big investment in POSW, I bought a lot of those coins not just because it looked promising and it was low cap, but because I own a ledger nano s and I could safely store them there, and so I did. Today I found out that in the past months this coin migrated to a new coin, and whoever owned it had to do something in order to swap the coin with the new one, the new coin being apparently called XSN. Now, it seems like the deadline for it was may 1st, so over 3 weeks ago. Does it mean I have lost all my coins only because I did not know that? or is there any way that they can get converted as they were stored on the ledger? does anyone know please? thank you