When using math.random, you're supposed to specify the lower number first, and not the higher number.

On line 5, you specified the lower end of the range second, when you were supposed to do it first.

local zPos = math.random(71.05 , -46.1)

It should look like this:

local zPos = math.random(-46.1 , 71.05)

There are a few issues, first of all you should never use math.random as it isn't actually random, it gets the next number off of the previous result. Instead use: Random.new(tick()):NextNumber()

You script errors because the first number is greater than the second, this is a fixed version of your script:

local spawnpoint = game.Workspace.MainSpawn

local xPos = Random.new(tick():NextNumber(-12.96, 217.21)
local Height = 41
local zPos = Random.new(tick():NextNumber(46.1, 71.05)

spawnpoint.Position = Vector3.new(xPos,Height,zPos)

NextNumber is used for decimal numbers NextInteger is used for whole numbers

If I helped please accept this answer!

I would recommend just checking for when the player respawns and teleporting them to the random position after they spawn by setting Cframe primary part

Try this perhaps.

local spawnpoint = game.Workspace.MainSpawn

local xPos = math.random(-1296 , 21721)/100
local Height = 41
local zPos = math.random(-4610,7105)/100

spawnpoint.Position = Vector3.new(xPos,Height,zPos)

I swapped out the decimals so that its whole numbers, divide it by 100 so you get decimals. I also swapped your negative and positive...

Feel free to tell me if it doesn't work.

I did it but now It just puts me randomly in the baseplate not in the position given.

wdym puts "YOU", what about the spawnpoint..?

Roblox LUA does not understand what you want to do.

It's going to generate the same random number every time.

I'd also recommend putting the spawn in ReplicatedStorage so we can clone it. And also create a folder in workspace called spawns where we parent the spawns later on

So put it in a while loop like this;

local MainSpawn = game.Workspace.MainSpawn:Clone()

local AllSpawns = game.Workspace.Folder

function generate()
    local PosX = math.random(-12.96 , 217.21)

    local PosZ = math.random(71.05 , -46.1)

    local NewVector = Vector3.new(PosX, 41, PosZ)

    return NewVector
end

while true do
    wait()
    local PartVector = generate()

    MainSpawn.Position = PartVector
    MainSpawn.Parent = game.Workspace.Folder

    if  #AllSpawns:GetChildren() > 10 then-- the max number of spawns you want
        break
    end
    end

The things you need to learn;

Returning; basically stops the function like a break in loops. And you can define the variable too.

# is a number for something that isn't a numbervalue:

Here's an example

function checkplayers()
    if #game.Players:GetPlayers() < 2 then
        print("2 or more player required to play the game")
    end
end

while wait(2) do
    checkplayers()
end