Could you give us the SysNAND Vers, what hax is running (B9S or A9LH), vers of Luma3DS, etc?
Also: Newer versions of Luma have been causing data aborts (on arm11 kernel), so its probably nothing. Try using a older version of Luma. (I believe a version of Luma 7.1 has B9S support, try it)