In order for us to provide better support, we need to see the log generated by Citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File.
HW.AES <Error> core/hw/aes/key.cpp:LoadPresetKeys:469: Invalid key name generator
HW.AES <Error> core/hw/aes/key.cpp:LoadPresetKeys:443: Failed to parse # load encryption game
HW.AES <Error> core/hw/aes/key.cpp:LoadPresetKeys:443: Failed to parse # share Mii via QR code between Citra and 3DS
HW.AES <Error> core/hw/aes/key.cpp:LoadPresetKeys:443: Failed to parse # generate accurate UDS data frames
HW.AES <Error> core/hw/aes/key.cpp:LoadPresetKeys:443: Failed to parse # install encrypted CIA
HW.AES <Error> core/hw/aes/key.cpp:LoadPresetKeys:443: Failed to parse
Do you have this file in your Citra folder: sysdata/aes_keys.txt ? i.e, go to where nand, sdmc, sysdata etc. are then open sysdata folder to check if aes_keys.txt is there or not, delete it if it’s there as you probably made a mistake when you followed: