How to fix Windows Boot Camp after Linux install/
You basically need to implement the same solution as the answer to Bootcamp High Sierra upgrade now not working. Substitute the commands given below.

r
h
2 3 7
y
af
n
ab
n
07
y
n
w
y


This solution is probably not the best one. Basically, you should have not moved BOOTCAMP to disk0s7. You should have either used a third part tool to move BOOTCAMP or manually reinstalled Windows.