Im getting this error everytime i try to join the place

I’ve tried TeleportAsync btw
I have zero clue on what to do
local tpservice = game:GetService("TeleportService")
local ffa = 70868175906697
--ffa
task.spawn(function()
local timer = 10
while true do
task.wait(1)
timer -= 1
local plrstotp = {}
local function isplralrintable(player)
for i, v in plrstotp do
if v.Name == player.Name then
return true
end
end
return false
end
local partsinpart = workspace:GetPartsInPart(workspace.ffa.zone)
for i, part in partsinpart do
local player = game.Players:GetPlayerFromCharacter(part.Parent)
if player~=nil then
if not isplralrintable(player) then
if #plrstotp < 9 then
table.insert(plrstotp,player)
end
end
end
end
local plrcounttext = workspace.ffa.plrcount.BillboardGui.TextLabel
plrcounttext.Text = timer.." | Players: "..#plrstotp.."/9"
if timer == 0 then
timer = 10
if #plrstotp > 0 then
tpservice:TeleportPartyAsync(ffa,plrstotp)
end
task.wait(2)
end
plrstotp = {}
end
end)