The mod Tech tree plus (1.6.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event tech_tree_plus::on_player_crafted_item (ID 17)
LuaItemStack API call when LuaItemStack was invalid for read.
stack traceback:
[C]: in function 'index'
__tech_tree_plus/control.lua:3355: in function <tech_tree_plus/control.lua:3354>

When I try to create Power Armour MK10
Edit: Any MK9 & MK10 (Power Armour, Battery, Fission Reactor, Laser Defense, Roboport, Energy Shield, & Solar Panel)
Exoskeleton MK4 & MK5
Night Vision MK1 (MK2 works)
Belt Immunity Equipment MK1 (MK2 works)

Mod:
Power Armour & Replacer
by Sgamez

Nevermind, I was using 1.6 - seems fine in 1.6.2

The mod Tech tree plus (1.6.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event tech_tree_plus::on_player_crafted_item (ID 17)
LuaItemStack API call when LuaItemStack was invalid for read.
stack traceback:
[C]: in function 'index'
__tech_tree_plus/control.lua:3378: in function <tech_tree_plus/control.lua:3377>