Thanks for your reply. I just tested with DBI and your sigpatches, but DBI says "error parsing file" selected files are corrupted. I also tried Lego Star Wars and it says "Nothing to install".
I boot using Hekate.
I'm using system software 14.1.1|AMS 1.3.2|S with Tinfoil with the latest sigpatches.
But everytime I try to install Kirby and the forgotten land I get the error "Failed to read NSP metadata" followed by Unknown NCA magic.
Any idea what this could be?