Hi, mod - industrial revolution 2
Error while running event BlueprintLab_design::on_gui_click (ID 1)
LuaGuiElement API call when LuaGuiElement was invalid.
stack traceback:
[C]: in function 'newindex'
__BlueprintLab_design/scripts/gui.lua:29: in function 'UpdateGui'
BlueprintLab_design/scripts/logic.lua:15: in function 'OnLabButton'
BlueprintLab_design/scripts/gui.lua:46: in function <BlueprintLab_design/scripts/gui.lua:44>
