Nethunter cant verify checksum

[Runnig Child]

I used nethunter app to install kali chroot in my rooted system and problems is that,it downloads file but stucks in sha512 checksum. I coule manually get checksum using sha512sum command in terminal and it took just 30 seconds. But app cant do it and shows empty line. Here is pic:
https://postimg.cc/BjGXD3RV