If you have placed the file in the sysdata folder and the error persists, check the following:
folder varies by operating system. You may need to create this folder manually if it doesn't exist C:\Users\[YourUsername]\AppData\Roaming\Citra\sysdata\ ~/Library/Application Support/Citra/sysdata/ ~/.local/share/citra-emu/sysdata/ [Internal Storage]/citra-emu/sysdata/ 2. Create the aes_keys.txt citra aes keystxt download fix
Legitimate Fix Steps (presumes you legally own the console and software) If you have placed the file in the