The functionality of the plugin has been disrupted

[MonumentOwner] The functionality of the plugin has been disrupted. There is no critical malfunction, but please report this message to the developer!
[MonumentOwner] The functionality of the plugin has been disrupted. There is no critical malfunction, but please report this message to the developer!
[MonumentOwner] The functionality of the plugin has been disrupted. There is no critical malfunction, but please report this message to the developer!
[MonumentOwner] The functionality of the plugin has been disrupted. There is no critical malfunction, but please report this message to the developer!
[MonumentOwner] The functionality of the plugin has been disrupted. There is no critical malfunction, but please report this message to the developer!
NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.MonumentOwnerExtensionMethods.ExtensionMethods.FirstOrDefault[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) [0x00000] in <b2552804d4464b85980d0eacddeb1ac2>:0 
  at Oxide.Plugins.MonumentOwner.CanTimeOwner (System.String MonumentID, System.UInt64 steamId, System.Double cooldown) [0x00013] in <b2552804d4464b85980d0eacddeb1ac2>:0 
  at Oxide.Plugins.MonumentOwner+ControllerMonument.IfPlayerCantBeOwner (BasePlayer player) [0x0001c] in <b2552804d4464b85980d0eacddeb1ac2>:0 
  at Oxide.Plugins.MonumentOwner+ControllerMonument.TimerForGetOwner () [0x000be] in <b2552804d4464b85980d0eacddeb1ac2>:0 
  at InvokeHandlerBase`1[T].DoTick () [0x00109] in <fd076a8a8d76445cb1509f0330ba8152>:0 
  at InvokeHandlerBase`1[T].LateUpdate () [0x0000c] in <fd076a8a8d76445cb1509f0330ba8152>:0 

Changed Status from Pending to Work in Progress

Thank you for your message. Please tell me if you have any ideas why this happened? As a result of what situation?

I've not see any other errors around when this popped up so im unsure

Changed Status from Work in Progress to Closed

Changed Fixed In to 1.5.0