admin ?

local Admins = {["YourIdHere"] = true}
local prefix = ";"

local commandTable = {}

function findPlayer(name)
    for _, player in ipairs(game.Players:GetPlayers()) do
        if player.Name:lower() == name:lower() then
            return player
        end
    end
end

-- Reset command.
function commandTable.reset(message, player)
    player.Character:BreakJoints()
end

-- Rejoin command
function commandTable.rejoin(message, player)
    game:GetService("TeleportService"):Teleport(game.PlaceId, player)
    if player.Character ~= nil then
        player.Character:remove()
    end
end

-- Kill command
function commandTable.kill(message, player)
    victim = findPlayer(message)
    if victim and victim.Character then
        victim.Character:BreakJoints()
    end
end

-- Kick command
function commandTable.kick(message, player)
    victim = findPlayer(message)
    if victim and victim.Character then
        victim:Kick("[Kick]: "..player.Name.." has kicked you from the game!")
    end
end

game.Players.PlayerAdded:Connect(function(player)
    if Admins[tostring(player.UserId)] then
        player.Chatted:Connect(function(message)
            local command, argument = message:match(prefix.."(.+) (.+)")
            if command and commandTable[command] then
                commandTable[command](argument, player)
            end
        end)
    end
end)