Default [Q] Problem with clouduyg3 1.1 ROM LG G2 D802

Hi, my name is Daniel, I'm so so sorry disturb you but I have a problem with this ROM..
Practically I have followed step by step the installation of the ROM on my lg g2 d802 and everithing is gone well but when i have rebooted the device, in the bootloader appeared the text SECURITY ERROR under the written LG and has shut down, i tried many times to install but the resultat don't change.. it only happened to me?

how can I fix this problem?