Galaxy s5 sprint flash stock rom

Hello good afternoon. Im trying to flash a stock rom back unto my Sprint Galaxy S5 Rom im running a MOAR rom on it on the 5.0 Version of Android ive tried several stock roms but odin gives me an error when trying to flash any stock rom...im on the A06 Build Number of MOAR any help would be greatly appreciated.

<ID:0/011> Firmware Update start
<ID:0/011> SingleDownload
<ID:0/011> aboot.mbn
<ID:0/011> NAND Write Start
<ID:0/011> FAIL! (AUTH)
<ID:0/011>
<ID:0/011> Complete (Write) Operation failed