How can I triple boot 3 OSs : Mac OS Sierra, Windows 10, Kubuntu?

I used to have mac and bootcamp partitions before this. Recently I decided to try linux. So when I finished installed my Linux partitions after going through lots of terminal(sudo fdisk diskutil blah blah etc....), I want to boot to my bootcamp (which is win10), It shows Missing Operating System. Then I tried to reinstall bootcamp but I cannot remove the bootcamp partition (tried disk utility and boot camp assistant but failed). I remove the partition successfully by using GParted live linux. Now when I get back to install/create the bootcamp partition/windows os, It shows the error shown in the screenshot attached.