why my custom Character models keep died and don't respawn?

in my game has some races and each of these races have a specific body, so i made some custom models for Character but when it die, it dont respawn and keep died until i rejoin, can someone help me?

Just go to explorer and then remove the humanoid it will remove the name but in the head just add a billboard GUI and Change it to your preferences, it even might make your npcs look better