Why is my script not recognizing peoples user ids?

I am currently working on an admin GUI, which is cloned from ServerStorage to a player PlayerGui if they have a certain UserId. So far, it does clone the right GUI into the player's PlayerGui, however, when a player in the "Lesser admin" category decides to press a certain key to open the GUI, nothing comes up. What is the problem here?

Server Script: (To clone the GUI into the players PlayerGui)

adminIDS = {72372728, 74518383, 21588477, 1224291081}
lesserAdminIDs = {44667224, 1588609025, 1679275868}

local function checkIfAdmin(player)
    local find = table.find(adminIDS, player.UserId)
    if find ~= nil then
        return true
    else
        return false
    end
end

local function checkIfLesserAdmin(player)
    local find = table.find(lesserAdminIDs, player.UserId)
    if find ~= nil then
        return true
    else
        return false
    end
end

game.Players.PlayerAdded:Connect(function(player)
    if checkIfLesserAdmin(player) then
        local askAdmin = game.ServerStorage.AskAdmin:Clone()
        askAdmin.Parent = player:FindFirstChild("PlayerGui")
    end

    if checkIfAdmin(player) then
        local list = game.ServerStorage.BanList:Clone()
        local askAdmin = game.ServerStorage.AskAdmin:Clone()
        list.Parent = player:FindFirstChild("PlayerGui")
        askAdmin.Parent = player:FindFirstChild("PlayerGui")
    end
end)adminIDS = {72372728, 74518383, 21588477, 1224291081}
lesserAdminIDs = {44667224, 1588609025, 1679275868}

local function checkIfAdmin(player)
    local find = table.find(adminIDS, player.UserId)
    if find ~= nil then
        return true
    else
        return false
    end
end

local function checkIfLesserAdmin(player)
    local find = table.find(lesserAdminIDs, player.UserId)
    if find ~= nil then
        return true
    else
        return false
    end
end

game.Players.PlayerAdded:Connect(function(player)
    if checkIfLesserAdmin(player) then
        local askAdmin = game.ServerStorage.AskAdmin:Clone()
        askAdmin.Parent = player:FindFirstChild("PlayerGui")
    end

    if checkIfAdmin(player) then
        local list = game.ServerStorage.BanList:Clone()
        local askAdmin = game.ServerStorage.AskAdmin:Clone()
        list.Parent = player:FindFirstChild("PlayerGui")
        askAdmin.Parent = player:FindFirstChild("PlayerGui")
    end
end)

Local Script: (To check if the GUI is in PlayerGui)

player = game.Players.LocalPlayer
mouse = player:GetMouse()
askAdmin = player:WaitForChild("PlayerGui"):WaitForChild("AskAdmin")
banList = player:WaitForChild("PlayerGui"):WaitForChild("BanList")
enabled = false
otherEnabled = false

local function makeAllInvisible(gui)
    local children = gui:GetChildren()
    for i = 1, #children do
        children[i].Visible = false
    end
end

mouse.KeyDown:Connect(function(key)
    if key:lower() == "z" then
        if player:FindFirstChild("PlayerGui"):FindFirstChild("AskAdmin") ~= nil then
            otherEnabled = not otherEnabled
            if otherEnabled then
                askAdmin:WaitForChild("Players").Visible = true
            else
                makeAllInvisible(askAdmin)
            end
        end
    end

    if key:lower() == "x" then
        if player:FindFirstChild("PlayerGui"):FindFirstChild("BanList") ~= nil then
            enabled = not enabled
            if enabled then
                banList:WaitForChild("Banned").Visible = true
                banList:WaitForChild("Search").Visible = true
            else
                makeAllInvisible(banList)
            end
        end
    end
end)