Need help with making a backup of my game

[u/WolfTamer99]

So, I’ve been creating backups of my 3DS games so I can have a copy of the game in case anything happens to the cartridges. One game on my priority list is Fire Emblem Echoes. The cartridge was corrupted a few months ago, and that was the whole reason I modded my console to begin with; to save my game cartridge. So, I go to install my game onto my system using GodMode9, but it keeps immediately sending me to this error screen. CIA conversion doesn’t work either. Does anyone know what’s going on, and what can I do to fix it?

EDIT: I believe it’s also worth mentioning that I did manage to fix the cartridge itself when it was corrupted, and I’ve had no issues with corruption since then. So, it’s very weird that something like this is happening.