Why is this happening?ServerScriptService.Script:7: bad argument #2 to 'random' (interval is empty)

The code is Starts Here:

local explosionPart = game.ServerStorage.ExplosionPart local explosionPartDropHeight = 100

local function createExplosionPartCopy() local explosionPartCopy = explosionPart:Clone() explosionPartCopy.Parent = game.Workspace local xPosition = math.random(440, 292) local zPosition = math.random(440, 292) explosionPartCopy.Position = Vector3.new(xPosition, explosionPartDropHeight, zPosition) end

while true do createExplosionPartCopy() wait (0.7) end

Ends Here. After i run it comes up with this: ServerScriptService.Script:7: bad argument #2 to 'random' (interval is empty) Pls someone help.