Unfortunately I also use this HDD for backups, it would take a long time to format, and I don't have enough space in my PC to transfer all files;
Anyway, checking in github, I downloaded this old loader.dol from "
https://github.com/FIX94/Nintendont/commit/4d282ff55a695584f082a5d5dde4d27178093ad4"
"Nintendont v3.403-exFAT-test4 is now ready for testing."
And it gives the same error
I guess 3.370 is stable enough to keep for now, since I finished some games on it last time. If I get a new HDD I will try your tip (format the entire drive to fat32), thanks for the help!