When my boss dies it should make the floor fall but it doesn't does anyone know how to fix this?

In my boss fight game, when the bosses health reaches 0 or lower the baseplate should unanchor and turn collisions off, but it doesn't do this.

local Ohum = workspace.Obama.Humanoid
local base = script.Parent

if Ohum.Health <= 0 then
	base.CanCollide = false
	base.Anchored = false
end