Vanish not working 15.05

Hi, I am getting this error

After I tried to apply the fix that was metioned here: https://umod.org/community/vanish/58093-may-2026-staging

I got this one error

Error while compiling Vanish: 'BasePlayer' does not contain a definition for 'StableIndex' and no accessible extension method 'StableIndex' accepting a first argument of type 'BasePlayer' could be found (are you missing a using directive or an assembly reference?) | Line: 451, Pos: 62

 

Without a fix I got these error.

Failed to initialize plugin 'Vanish v2.1.3' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.Vanish.InitVanishedPlayers () [0x00000] in <01bcac26197e4226978c4ae2e65ed900>:0
at Oxide.Plugins.Vanish.Loaded () [0x00020] in <01bcac26197e4226978c4ae2e65ed900>:0
at Oxide.Plugins.Vanish.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0009c] in <01bcac26197e4226978c4ae2e65ed900>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <42f9bedc659b4f4786eb778d3cd58968>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <15f61ddda771464d8246ebdce8ff4811>:0
at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x000cf] in <42f9bedc659b4f4786eb778d3cd58968>:0

We installed the update, and still the plug is not working