Cannot install ANY Facebook app. Be it regular, modded or even lite
I've had issues installing apps after tweaking stuff before. I was sometimes able to resove it with pm set-install-location 0 in the terminal emulator (executed as superuser obviously).
Though after reading through the comments, it seems like the problem could be more deep then this. I'd also suggest to switch back to SuperSU and see if the problem persists, just like @gamermane-Marsh suggested.