Highly upset

every time i try to save a mod to a file i get a message that reads “object already exists”, i dont know what went wrong with this program, it used to work so well, now ive corrupted literally 5 save files. i just purchased diamond too, that didn’t work either. ive uninstaled and reinstalled horizon, ive wiped my memory stick, ive used different ones and yet nothing works. i was a fan of horizon until now, someone really needs to look into this…

What file are you trying to mod?
Have you ever modded the file with another program?

ive never modded with another tool. and ive tried to mod such files as, GTA5, forza 4, and horizon, skyrim, and 2K14. every one of them has gotten corrupted