My ice script isnt working from this one line please help,idk whats wrong like actually?

local function Ice()
	local extra = math.random(-1.1,1.1)
	local Shard = game.ReplicatedStorage.IceShard:clone()
	local side = math.random(-sideval,sideval)
	up = Shard.Size.Y/2
	local rotate = math.random(0,180)
	local MRo = math.Random(99,100)
	if MRo == 99 then
	SRo = math.random(8/10)/10
	URo = MRo + SRo
	else
	SRo = math.random(1,3)/10
	URo = MRo + SRo
	end
	local lean = math.random(4,4)/10
	Shard.Size = Vector3.new(sizez,sizex,sizez)
	Shard.CFrame = char.HumanoidRootPart.CFrame * CFrame.new(side,-up,val + extra)
	Shard.Parent = folder
	Shard.CFrame = Shard.CFrame * CFrame.from.EulerAnglesXYZ(URo,rotate,0.4)

i honestly dont know whats wrong with this line its this line thats making every