depends how you're killing the player's character.
try using Humanoid:TakeDamage() instaid of setting the players health. in the docs it mentions that Humanoid:TakeDamage lowers the health of a humanoid but it check if a force feild is used.
https://create.roblox.com/docs/reference/engine/classes/Humanoid#TakeDamage
they explain it better in the docs so look what they said
** You are now Level 1! **