How to fix this error?(XB360)

STFS: trying to update unallocated block 0x00000009[0xC0000032]
I was trying to mod stuff in for my friend for Borderlands, and when trying to replace the file in Horizon after editing it, i got this error.
I’m unsure why because I have been modding the same way for a long time. Help?


Delete your profile off your console and download it again, then copy it to your USB. That should fix it.