lg ls980 not booting after flashing ROM topic

i flashed cloudy g3 rom on my lg g2 ls980 and after the installation is done device reboots
and the only thing i get after that its twrp interface.
i also tried cm12 after pushing the file with abd or sideload, when the install is done i get the same result.
device reboots and twrp interface comes back.
any help guys :/