A6020 black screen on after reboot

the rom fo lenovo vibe k5 plus (A6020) MK71.2-a6020-201804040036-NIGHTLY.zip, is so smooth and the best rom for me in K5 plus, but however the problem is when i reboot m yphone or power off it, it always failed to boot? or i mean it stucks in blackscreen, PLease Mokee Devs Fix it because i love your roms