character doesn't dash but the fx seems to work. can someone help me?

``

        for _, v in pairs(chr:GetChildren()) do

            if v:IsA("Accessory") then
                for i, b in pairs(v:GetChildren()) do
                    if b:IsA("BasePart") then
                        b.Transparency = 1
                    end
                end
            end

            if v:IsA("BasePart") then
                v.Transparency = 1
                if v.Name == "Head" then
                    v.face.Transparency = 1
                end
            end



            delay(.5, function()
                if v:IsA("Accessory") then
                    for i, b in pairs(v:GetChildren()) do
                        if b:IsA("BasePart") then
                            b.Transparency = 0
                        end
                    end
                end

                if v:IsA("BasePart") then
                    v.Transparency = 0
                    if v.Name == "HumanoidRootPart" then
                        v.Transparency = 1
                    end

                    if v.Name == "Head" then
                        v.face.Transparency = 0
                    end
                end
            end)

        end

        local dashFX = particleFX.Dash:Clone()
        local dashSFX = sounds.dash:Clone()
        dashSFX.Parent = workspace
        dashFX.Parent = chr.Torso

        dashFX:Emit(20)
        dashSFX:Play()

        local dashBV = Instance.new("BodyVelocity")
        dashBV.MaxForce = Vector3.new(999999, 0, 999999)
        dashBV.Parent = humRP

        if isW then
            dashBV.Velocity = humRP.CFrame.LookVector * 100

        elseif isA then
            dashBV.Velocity = humRP.CFrame.RightVector * -100

        elseif isS then
            dashBV.Velocity = humRP.CFrame.LookVector * -100

        elseif isD then
            dashBV.Velocity = humRP.CFrame.RightVector * 100
        end


        debris:AddItem(dashBV, .2)


        debris:AddItem(dashFX, .5)
        debris:AddItem(dashSFX, dashSFX.TimeLength)