Unhappy [Q] e330L 4.3 issues

i downloaded
http://forum.xda-developers.com/show....php?t=2582135
this firmware
but when i try to flash it with odin it gives error
fail (auth)
i dont know wat it means but my phone is working fine with stock firmware 4.3
i am trying to flash france firmware to get rid of korean apps etc
thanks in advance