When I try to open GUIShop in game it no longer opens, all i see is an error in the hosting consol.

[GUIShop] Error (Object reference not set to an instance of an object)
at double Oxide.Plugins.GUIShop.GetCurrency(ShopCategory shop, BasePlayer player) in /home/container/carbon/plugins/GUIShop.cs:line 3446
at void Oxide.Plugins.GUIShop.ShowGUIShops(BasePlayer player, string shopKey, int from, bool fullPaint, bool refreshFunds) in /home/container/carbon/plugins/GUIShop.cs:line 3653
at void Oxide.Plugins.GUIShop.CmdGUIShop(BasePlayer player, string command, string[] args) in /home/container/carbon/plugins/GUIShop.cs:line 4889
at void Oxide.Game.Rust.Libraries.Command.AddChatCommand(string command, BaseHookable plugin, Action<BasePlayer, string, string[]> callback, string help, object reference, string[] permissions, string[] groups, int authLevel, int cooldown, bool isHidden, bool protected, bool silent)+(Args arg) => { }

Server is >
version
Protocol: 2511.243.1
Build Date: 11/04/2023 17:59:59
Unity Version: 2021.3.29f1
Changeset: 89530
Branch: experimental/release

Hiya, I'll double check this today :) We will be trialing GUIShop 3 which is a ground up rewrite with no requirements soon; so you have that to look forward too in the meantime! :)

Okay, I just checked and it apears that after a couple of restarts it just started working.

Look forward to the next version.