this works for a little bit 15 min or so then wont open again ith the /pc command. this is what comes uo in console:
Failed to call hook 'cmdPC' on plugin 'PlayerChallenges v2.0.47' (KeyNotFoundException: The given key was not present in the dictionary.)
at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <437ba245d8404784b9fbab9b439ac908>:0
at Oxide.Plugins.PlayerChallenges+UI.Container (System.String panelName, System.String aMin, System.String aMax, System.Boolean cursor) [0x00013] in <f8ef607bf96e4d74876da241143f4a88>:0
at Oxide.Plugins.PlayerChallenges.CreateMenuContents (BasePlayer player, System.Int32 page) [0x00000] in <f8ef607bf96e4d74876da241143f4a88>:0
at Oxide.Plugins.PlayerChallenges.CreateMenu (BasePlayer player) [0x00014] in <f8ef607bf96e4d74876da241143f4a88>:0
at Oxide.Plugins.PlayerChallenges.cmdPC (BasePlayer player, System.String command, System.String[] args) [0x0000b] in <f8ef607bf96e4d74876da241143f4a88>:0
at Oxide.Plugins.PlayerChallenges.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0072e] in <f8ef607bf96e4d74876da241143f4a88>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <d09a1f46ca2f4432811bcfe45ad13c7b>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <cf88a28c7fb44d36890d85a78331cc9d>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <cf88a28c7fb44d36890d85a78331cc9d>:0