Does anyone know why it says all the time "attempt to index a nil value"?

Hello, so i'm trying to load value from ReplicatedStorage into a normal leaderboard, but it just keep saying "ServerScriptService.LinkedLeaderboard:138: attempt to index a nil value".

Problem is in these lines:(Original lines)

local PlayerStats = game.ReplicatedStorage.PlayerStorage.Store:FindFirstChild(newPlayer.Name).PointsStorage
        if PlayerStats ~= nil then
            if cash then
                local Short = Settings.LeaderboardSettings.ShowShortCurrency
                PlayerStats.Changed:connect(function()
                    if (Short) then
                        cash.Value = Settings:ConvertShort(PlayerStats.Value)
                    else
                        cash.Value = Settings:ConvertComma(PlayerStats.Value)
                    end
                end)
            end
        end

Even i tried to separate PointsStorage from it and add new line with it.

Here is changed a bit script:

local PlayerStats = game.ReplicatedStorage.PlayerStorage.Store:FindFirstChild(newPlayer.Name)
        if PlayerStats ~= nil then
local plrStats = PlayerStats:FindFirstChild("PointsStorage")
if plrStats ~= nil then
            if cash then
                local Short = Settings.LeaderboardSettings.ShowShortCurrency
                plrStats.Changed:connect(function()
                    if (Short) then
                        cash.Value = Settings:ConvertShort(plrStats.Value)
                    else
                        cash.Value = Settings:ConvertComma(plrStats.Value)
                    end
                end)
                end
            end
        end

Error dissapeared, but script still don't work..