Thanks so much, I've tried but in my case didn't work, however, I found the solution with a new func
now I have a bigger problem:
I have a code properly work on level1 but loading the level 2 any calls to a scene calls "HUD" doesn't work anymore
get_tree().get_root().get_node("MainScene2D").get_node("Player").score = player_score
get_tree().get_root().get_node("MainScene2D").get_node("HUD").get_node("Hud").get_node("ScorePanel").get_node("Score").text = str(player_score)
$Timer.start()
for instance