I'm making a Ki blast script but it doesn't damage, what's happening?

I want to do the damage from my ki blast based on enemie defense, i did almost the same thing to do a punch and it's working, but when i put the script into the ki blast, it just ignore the condition to check the enemie's defense, sorry if it's a long script:

local player = game.Players.LocalPlayer
local name = player.Name
local candamage = true


local stats = game.ReplicatedStorage:WaitForChild("stats"..name)
local power = stats:WaitForChild("power")
local ki = stats:WaitForChild("ki")
local defense = stats:WaitForChild("defense")
local kidmg = stats:WaitForChild("kidamage")
local chatting = false
local energy = stats:WaitForChild("energy")
local maxenergy = stats:WaitForChild("maxenergy")
local hold = false
local candamage = true
local touched = false
local coolE = false

 local function onKeyPress(inputObject, gameProcessedEvent)
    if inputObject.KeyCode == Enum.KeyCode.Q and coolE == false then

         local human1 = workspace:WaitForChild(name)
        local human = human1:WaitForChild("Humanoid")   
        local righthand = human.Parent.RightHand
        local torso = human.Parent.HumanoidRootPart





        local blast = Instance.new("Part")
        blast.Shape = "Ball"
        blast.Parent = workspace
        blast.Size = Vector3.new(2,2,2)
        blast.Material = "Neon"
        blast.BrickColor = BrickColor.new("Cyan")
        blast.Transparency = 0.2

        blast.CFrame = righthand.CFrame * CFrame.new(0,0,0)
        local bv = Instance.new("BodyVelocity")
        bv.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
        bv.Velocity = torso.CFrame.lookVector * 100
        bv.Parent = blast
        blast.CanCollide = false
        wait(0.04)
        blast.CanCollide = true
        energy.Value = energy.Value - 10

blast.Touched:connect(function(hit)
    blast:Destroy()
    local namep = hit.Parent.Name
    local humanp = hit.Parent.Humanoid
    local maxp = humanp.MaxHealth / 100
    local health = humanp.Health
    local statsp = game.ReplicatedStorage:WaitForChild("stats"..namep)
    local defensep = statsp:WaitForChild("defense")
    local dama = ki.Value / defensep.Value



if 1 < dama and dama < 1.1 and candamage == true then -- and here that stop working
    health = maxp - dama * 1
    wait(0.5)
    candamage = true

elseif 1.1 < dama and dama < 1.2 and candamage == true then
    health = maxp - dama * 1.5
    wait(0.5)
    candamage = true


elseif 1.2 < dama and dama < 1.3 and candamage == true then
    health = maxp - dama * 2
    wait(0.5)
    candamage = true


    elseif 1.3 < dama and dama < 1.4 and candamage == true then
    health = maxp - dama * 3
    wait(0.5)
    candamage = true


    elseif 1.4 < dama and dama < 1.5 and candamage == true then
    health = maxp - dama * 5
    wait(0.5)
    candamage = true


    elseif 1.5 < dama and dama < 1.6 and candamage == true then
    health = maxp - dama * 8
    wait(0.5)
    candamage = true


    elseif 1.6 < dama and dama < 1.7 and candamage == true then
    health = maxp - dama * 11
    wait(0.5)
    candamage = true


    elseif 1.7 < dama and dama < 1.8 and candamage == true then
    health = maxp - dama * 20
    wait(0.5)
    candamage = true


    elseif 1.8 < dama and dama < 1.9 and candamage == true then
    health = maxp - dama * 40
    wait(0.5)
    candamage = true


    elseif 1.9 < dama and dama < 2 and candamage == true then
    health = maxp - dama * 60
    wait(0.5)
    candamage = true


    elseif 2 < dama  and candamage == true then
    health = maxp - dama * 100
    wait(0.5)
    candamage = true



end

end)


        local animation = Instance.new("Animation") -- and from here it's working again
        animation.AnimationId = "http//roblox.com/?id=01335430799"
        local animTrack = human:LoadAnimation(animation)
        ki.Value = ki.Value + 5
        animTrack:play()
        coolE = true
        wait(0.4)
        coolE = false
        animTrack:stop()


        end

        end


    game:GetService("UserInputService").InputBegan:connect(onKeyPress)

And it doesn't say nothing in the output, and the whole script is working except for the damage