Wait I have an idea:
If you have a previous NAND backup that already has the game you can maybe mount that previous NAND.bin with GodMode9 and copy paste the ticket and the game to your current TWL NAND?
I guess when you try to redownload it from eShop it throws an 010-3021 error right?( it means it was removed from eShop servers, which it did some months ago)
I'll try freeShop.
EDIT: It worked! Problem solved, requesting lock.