(22:20:12) | Failed to call hook 'PlayerAdministrationHurtUserCallback' on plugin 'PlayerAdministration v1.3.21' (NullReferenceException: Object reference not set to an instance of an object)

at Oxide.Plugins.PlayerAdministration.BuildUserPage (Oxide.Plugins.PlayerAdministration+Cui& aUIObj, Oxide.Plugins.PlayerAdministration+UiPage aPageType, System.UInt64 aPlayerId) [0x00101] in <a19cf2e413194952b1677cc161668772>:0

at Oxide.Plugins.PlayerAdministration.BuildUI (BasePlayer aPlayer, Oxide.Plugins.PlayerAdministration+UiPage aPageType, System.String aArg, System.Boolean aIndFiltered) [0x000c0] in <a19cf2e413194952b1677cc161668772>:0

at Oxide.Plugins.PlayerAdministration.PlayerAdministrationHurtUserCallback (ConsoleSystem+Arg aArg) [0x0008b] in <a19cf2e413194952b1677cc161668772>:0

at Oxide.Plugins.PlayerAdministration.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x01cfb] in <a19cf2e413194952b1677cc161668772>:0

at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0

at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0

at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0

Hello, thanks for the report.
Could you perhaps provide a more detailed report?

Does this happen with every target or with just one single specific target?
What were the steps leading up to the error?

Thanks for the time to report this, still. :)