Fix error overflowing

src/scenes/character/player_controller_3d.gd

@@ -106,7 +106,7 @@ func _notification(what):
 		NOTIFICATION_WM_WINDOW_FOCUS_IN:
 			Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
 		NOTIFICATION_EXIT_TREE:
-			print("PlayerController %s exited tree" % multiplayer.get_unique_id())
+			print("PlayerController exited tree")
 		NOTIFICATION_ENTER_TREE:
 			print("PlayerController %s entered tree" % multiplayer.get_unique_id())
 	

src/scripts/network/network_handler.gd

@@ -41,6 +41,7 @@ func close_connection():
 		multiplayer.multiplayer_peer = null
 	print("Connection closed.")
 	_disconnect_signals()
+	GameManager.reset_game_state()
 
 func setup_connections():
 	if not multiplayer.peer_connected.is_connected(on_peer_connected):
@@ -85,3 +86,4 @@ func on_connected_to_server() -> void:
 func on_server_disconnected() -> void:
 	print("Disconnected from server.")
 	get_tree().change_scene_to_file("res://main.tscn")
+	GameManager.reset_game_state()

src/scripts/singletons/game_manager.gd

@@ -27,7 +27,13 @@ func _ready():
 		return
 
 func _process(_delta):
-	if find_available_spawner():
+	if not multiplayer.multiplayer_peer: return
+	if not multiplayer.is_server(): return
+
+	# Safety check: don't try to spawn if the system isn't ready or is deleted
+	if not is_instance_valid(current_star_system): return 
+
+	if not waiting_players.is_empty() and find_available_spawner():
 		_try_spawn_waiting_player()
 
 
@@ -150,3 +156,13 @@ func _get_orbital_body_ancestor(node: Node) -> OrbitalBody3D:
 			return current
 		current = current.get_parent()
 	return null
+
+func reset_game_state():
+	current_star_system = null
+	registered_spawners.clear()
+	waiting_players.clear()
+	player_pawns.clear()
+	player_controllers.clear()
+
+	# Reset any other state variables
+	print("GameManager state cleared.")