Get error when closed Godot editor

[Riki4649]

Addon works fine. However, command line gets error when closed Godot editor.
Am I doing something wrong?
Godot 4.2.1/ Windows10

Godot Engine v4.2.1.stable.official.b09f793f5 - https://godotengine.org
Vulkan API 1.3.277 - Forward+ - Using Vulkan Device #0: NVIDIA - NVIDIA GeForce RTX 2060

ERROR: Condition ' !GDScriptLanguage::get_singleton()->get_named_globals_map().has(*globalname) ' is true. Breaking..:
   at: call (modules/gdscript/gdscript_vm.cpp:3347)
SCRIPT ERROR: Internal script error! Opcode: 104 (please report).
          at: TOD_Manager._exit_tree (res://addons/time-of-day/src/time-of-day/tod_manager.gd:243)
ERROR: Condition ' !GDScriptLanguage::get_singleton()->get_named_globals_map().has(*globalname) ' is true. Breaking..:
   at: call (modules/gdscript/gdscript_vm.cpp:3347)
SCRIPT ERROR: Internal script error! Opcode: 104 (please report).
          at: TOD_Moon._exit_tree (res://addons/time-of-day/src/sky/celestials/tod_moon.gd:103)
ERROR: Condition ' !GDScriptLanguage::get_singleton()->get_named_globals_map().has(*globalname) ' is true. Breaking..:
   at: call (modules/gdscript/gdscript_vm.cpp:3347)
SCRIPT ERROR: Internal script error! Opcode: 104 (please report).
          at: TOD_Sun._exit_tree (res://addons/time-of-day/src/sky/celestials/tod_sun.gd:34)
ERROR: Condition ' !GDScriptLanguage::get_singleton()->get_named_globals_map().has(*globalname) ' is true. Breaking..:
   at: call (modules/gdscript/gdscript_vm.cpp:3347)
SCRIPT ERROR: Internal script error! Opcode: 104 (please report).
          at: TOD_Sky._exit_tree (res://addons/time-of-day/src/sky/tod_sky.gd:107)

[sourceonfire]

It's a plugin bug.