Robin Hoods Playground

well i have a asus m2a-vm and im using my com 1 port to a ribbon serial and i flashed a lite on with iprep 8.8 and now i cant seem to do this one

Well i flashed one lite on already and wanted to flash my cousins but i do every step correctly but when i pressy (y) to read the key it gives me a invalid key this is kinda what it says
file not found-key.bin
( )
( )-dummy.bin
Please help