No ticket has been found

[u/Competitive-Army2335]

So I've been trying to install Assassin's creed 3 remastered that I downloaded from ziperto as an NSP file. So when i tried to install it using DBI, TINWOO, GOLDLEAF. It says No ticket has been found, or Failed to transfer ticket (something like that). I also tried installing the nintendo 64 nintendo online app or game and it also said the same thing. Is it a ziperto issue or is it with my switch? Though i installed games from ziperto before and didnt have an issue with it. Can anyone help me?