Help with attempt to call a nil value?

Hello, I'm currently making a admin for my game, and I'm having errors. Error: Players.lightt_1337.PlayerGui.MainModule.Admin.Bar.TextBox.LocalScript:81: attempt to call a nil value Stack Begin 14:16:57.113 - Script 'Players.lightt_1337.PlayerGui.MainModule.Admin.Bar.TextBox.LocalScript', Line 81 14:16:57.114 - Stack End

As you can see its calling a error on the local script.

My script:

local UIS = game:GetService("UserInputService")

local function getplayers(t)
    local tablofplr = {}
    if t == "all" then
        for i,v in pairs(game.Players:GetPlayers()) do
            table.insert(tablofplr, v)
        end
    elseif t == "others" then
        for i,v in pairs(game.Players:GetPlayers()) do
            table.insert(tablofplr, v)
        end
        for i,v in pairs(tablofplr) do
            if v == game.Players.LocalPlayer then
                table.remove(tablofplr, i)
            end
        end
    elseif t == "me" then
        table.insert(tablofplr, game.Players.LocalPlayer)
    else
        if string.split(t, "|")[2] then
            for i,v in pairs(string.split(t, "|")) do
                for _, plr in pairs(game.Players:GetPlayers()) do
                    if plr.Name:lower():find(v:lower()) then
                        table.insert(tablofplr, plr)
                    end
                end
            end
        else
            for _, plr in pairs(game.Players:GetPlayers()) do
                if plr.Name:lower():find(t:lower()) then
                    table.insert(tablofplr, plr)
                end
            end
        end
    end
    return tablofplr
end

UIS.InputBegan:Connect(function(input)
    if input.KeyCode == Enum.KeyCode.Semicolon then
        script.Parent.Parent:TweenPosition(UDim2.new(0.204, 0, 0.929, 0), "In", "Sine", 0.3)
        script.Parent:CaptureFocus()
        wait(0.1)
        script.Parent.Text = ""
    end
end)


script.Parent.FocusLost:Connect(function(enterPressed)
    if enterPressed then
        script.Parent.Parent:TweenPosition(UDim2.new(-0.592, 0, 0.95, 0), "Out", "Sine", 0.3)
        local argstosend
        if string.split(script.Parent.Text, " ")[2] == nil then
            argstosend = {
                ["cmd"] = string.split(script.Parent.Text, " ")[1],
                ["targets"] = getplayers("me"),
                ["me"] = game.Players.LocalPlayer,
                ["args"] = string.split(script.Parent.Text, " ")
            }
        else
            argstosend = {
                ["cmd"] = string.split(script.Parent.Text, " ")[1],
                ["targets"] = getplayers(string.split(script.Parent.Text, " ")[2]),
                ["me"] = game.Players.LocalPlayer,
                ["args"] = string.split(script.Parent.Text, " ")
            }
        end
        require(script.Parent.handler).runcmd(argstosend)
        script.Parent.Text = ""
    end
end)

script.Parent.Changed:Connect(function()
    for _,b in pairs(script.Parent.Parent.Frame:GetChildren()) do
        if b:IsA("Frame") then
            b:Destroy()
        end
    end
    if script.Parent.Text ~= ""then
        for i,v in pairs(require(script.Parent.handler).getcmds()) do
            if v["cmd"] ~= nil and v["cmd"]:find(script.Parent.Text) or v["cmd"]:find(string.split(script.Parent.Text, " ")[1]) then
                local b = script.Parent.Parent.CMDName:Clone()
                b.Parent = script.Parent.Parent.Frame
                b.Visible = true
                b:FindFirstChild("TextLabel").Text = v["desc"]
            end
        end
    end
end)