Someone reported this on my Forcefields mod.
3096.930 Error MainLoop.cpp:1199: Exception at tick 13137093: The mod Turret Shields caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Turret-Shields::on_entity_damaged (ID 97)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
__Turret-Shields__/control.lua:648: in function <__Turret-Shields__/control.lua:627>
stack traceback:
[C]: in function '__index__'
__Turret-Shields__/control.lua:648: in function <__Turret-Shields__/control.lua:627>
Small amendment: Also happened during a biter attack
