What and How is this a userdata value?

I'm trying to make it so you randomly spawn in any of the spawnpoint setup but it is saying that spawns is a user data value

variables / values

local maps = serverstorage:WaitForChild("maps")
local mapholder = game.Workspace:WaitForChild("MapHolder")
local allmaps = maps:GetChildren()
mapholder:ClearAllChildren()
local newmap = allmaps[math.random(1, #allmaps)]
newmap.Parent = game.Workspace
spawnsmodel = newmap:WaitForChild("spawns")
local spawns = spawnsmodel:FindFirstChild("spawnpoint")

spawning people

	for i, Player in pairs(people) do
		if Player and Player.character then
			local torso = Player.Character:WaitForChild("Torso")
			local spawnindex = math.random(1, #spawns)
			local spawner = spawns[spawnindex]
			if spawner and torso then
				table.remove(spawns,spawnindex)
				torso.CFrame = CFrame.new(spawner.position + Vector3.new(0,3,0))
				matchtag = Instance.new("StringValue")
				matchtag.Name = "MatchTag"
				matchtag.Parent = Player.character
				end
				
					local backpack = Player:FindFirstChild("Backpack")
					if backpack then
						if Player == Chuini then
							axe = serverstorage:WaitForChild("axe"):clone()
							axe.Parent = backpack
							game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 14
							game.lighting.FogEnd = 10000
							game.Players.LocalPlayer.Character.Humanoid.MaxSlopeAngle = 85
							if game.Workspace.SprintScriptImporter.SprintScript.runing == true then
								game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 25
							end
							event:FireAllClients("Class", "Chuini")
							end
						else
							game.Lighting.FogEnd = 50
							event:FireAllClients("Class", "Tourist")
						end
					end
				end
	end
end

output 13:11:23.642 - ServerScriptService.mainscript:212: attempt to get length of local 'spawns' (a userdata value) 13:11:23.644 - Stack Begin 13:11:23.645 - Script 'ServerScriptService.mainscript', Line 212 13:11:23.685 - Stack End