Error installing .cia on 10.6 emuNAND

Tried to install Theatrhythm Final Fantasy: Curtain Call with FBI on 10.6 and it gave this error:

Install failed!
TFFCCeu.cia
Source: SOURCE_FSFILE_WRITE (0x1c)
Module: MODULE_NN_AM (0x20)
Level: LEVEL_STATUS (0x19)
Summary: SUMMARY_INVALID_ARGUMENT (0x7)
Description: <unknown> (0x1)