The mod Unit Control [fixed] (2.0.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Unit_Controll::on_player_selected_area (ID 56)
LuaRenderObject API call when LuaRenderObject was invalid.
stack traceback:
[C]: in function 'index'
__Unit_Controll/script/unit_control.lua:411: in function 'clear_selection_indicator'
Unit_Controll/script/unit_control.lua:484: in function 'deselect_unit'
Unit_Controll/script/unit_control.lua:1070: in function 'process_unit_selection'
Unit_Controll/script/unit_control.lua:1132: in function <Unit_Controll/script/unit_control.lua:1111>
(...tail calls...)
core/lualib/event_handler.lua:72: in function <core/lualib/event_handler.lua:70>