Explosion for a part isn't working, how do I fix it? [UNSOLVED]

Basically, I need help with a part that's supposed to explode on contact if the part's parent isn't named "Enemy." I've checked the console and no errors are being given. If anyone could help, it'd be much appreciated! It also does a certain amount of damage depending how close you are to the part when it blows up (or when you shoot it, etc.)

The max damage is 75.

local maxDamage = 75



function onTouched(hitPart) 
local explosion = Instance.new("Explosion")
explosion.BlastPressure = 0 
explosion.BlastRadius = 16
explosion.Hit:connect(function(hitPart, partDistance)

    local humanoid = hitPart.Parent:FindFirstChild("Humanoid")
    if humanoid and hitPart.Parent.Name ~= "Enemy" then
        local distance_factor = partDistance/explosion.BlastRadius
        distance_factor = 1 - distance_factor
		if maxDamage*distance_factor >= 0 then
      	  humanoid:TakeDamage(maxDamage*distance_factor)
		end
    end
end)
explosion.Parent = workspace
end 


connection = script.Parent.Touched:connect(onTouched)