Not reflecting but freezing? [UNSOLVED]

Hey, i am trying to make a move that reflect body velocity but the move freezes the other moves when it comes into contact. Here is the reflect script >

function MirrorWater(hit)
      if BodyVelocity > 0 then
          BodyVelociy.velocity = -BodyVelocity.velocity
		
		end
           end
script.Parent.Touched:connect(MirrorWater)

Here is one of the moves I want it to reflect, I think it's because it can't detect the meshes?

bin = script.Parent
me = script.Parent.Parent.Parent
name = "Lightning God's Charged Particle Cannon"
Colour = BrickColor.new("New Yeller")
enabled = true
cost = 80
Backpack = bin.Parent
Player1 = Backpack.Parent
Player = Player1.Character
LeftShoulder = Player.Torso["Left Shoulder"]
RightShoulder = Player.Torso["Right Shoulder"]
Run = game:GetService("RunService")
na = bin.Name
Axe = script.Parent.Parent.Parent.PlayerGui:findFirstChild("Energy")
mag = Axe.Magic
magmax = Axe.MagicMax



	
game.Debris:AddItem(MagicSym,1)
		
		x = Instance.new("Part")
		x.BrickColor = Colour
		x.Size = Vector3.new(10,10,40)
		x.TopSurface = "Smooth"
		x.BottomSurface = "Smooth"
		x.Shape = "Block"
		x.Name = "DS"
		x.CanCollide = false
		x.Anchored = false
		p = script.PointLight:clone()
		p.Parent = x
		fd = script.Firedamage:clone()
		fd.Parent = x
		o = Instance.new("StringValue",x)
		o.Value = me.Name
		o.Name = "Owner"
		z = Instance.new("SpecialMesh",x)
		z.MeshType = "Sphere"
		z.Scale  = Vector3.new(0,0,0)
		y = Instance.new("BodyVelocity")
		y.maxForce = Vector3.new(math.huge, math.huge, math.huge)
		y.velocity = me.Character.Torso.CFrame.lookVector* 330
		x.Parent = Workspace
		y.Parent = x
		x.CFrame = me.Character.Torso.CFrame*CFrame.new(0,0,-3) * CFrame.Angles(0,0,0)
		fd.Disabled = false
		x.Transparency = .2
  		

		x2 = x:clone()
		x2.BrickColor = BrickColor.new("Really black")
		x2.Size = x.Size * Vector3.new(1.25,1.25,1.25)
		x2.CanCollide = false
		x2.Position = x.Position
		x2.Parent = Workspace
		z2 = x2["Mesh"]
		x2["Firedamage"]:remove()
		fd2 = script.Firedamage2:clone()
		fd2.Parent = x2
		fd2.Disabled = false
		x2.Transparency = x.Transparency * 3
		w1 = Instance.new("Weld", x)
		w1.Part0 = x2
		w1.Part1 = x
		w1.C1 = CFrame.fromEulerAnglesXYZ(0, 0, 0) *CFrame.new(0 ,0, 0)

		
		
		
game.Debris:AddItem(x,3)
game.Debris:AddItem(x2,3)
		for i = 1,5 do
			z.Scale = z.Scale + Vector3.new(.2,.2,.2)
			x.Transparency = x.Transparency - .02
			z2.Scale = z2.Scale + Vector3.new(.2,.2,.2)
			x2.Transparency = x2.Transparency - .02
			wait(.005)
		end
		
		

enabled = true
function onS(mouse) 
mouse.Button1Down:connect(function() onButton1Down(mouse) end) 
end 
bin.Selected:connect(onS)

Removed some of the un needed stuff

The following line is wrong:

if BodyVelocity > 0 then

BodyVelocity is (presumably) an object -- it isn't "larger" than anything.

I'm assuming you meant this to only make it reflect if it's moving into the object. This requires a bit more assumptions that you haven't stated, so I'm not going to address that rigorously, and instead address a simpler solution.

In addition, you didn't define BodyVelocity. I'm assuming that it would be something like this:

function MirrorWater(hit)
	local BodyVelocity = hit:FindFirstChild("BodyVelocity")
	if BodyVelocity then
		BodyVelocity.velocity = -BodyVelocity.velocity
	end
end

We should make sure we only reflect it once (which is simpler than the vector math to determine if it's coming at you, though we could do that too). A simple way would be to insert another object into the part saying it's been reflected (assuming the part is cleaned up rather than reused in the future)

function MirrorWater(hit)
	local BodyVelocity = hit:FindFirstChild("BodyVelocity")
	if not hit:FindFirstChild("AlreadyMirrored") then
		if BodyVelocity then
			BodyVelocity.velocity = -BodyVelocity.velocity
			Instance.new(hit, "NumberValue").Name = "AlreadyMirrored"
		end
	end
end

Touched events will not fire when they contact the mesh -- only when they contact the part itself. Size (and/or Shape into a Ball) the object appropriately to match its mesh.