New update, can't reset player cooldown

Getting this error:

mocdreset 76561198208896681
Failed to call hook 'ConsoleCmd_ResetCooldown' on plugin 'MonumentOwner v1.8.0' (InvalidCastException: Specified cast is not valid.)
  at System.Convert.ToUInt64 (System.Object value) [0x00003] in <e605204d165a49d89ae7579f3d894429>:0 
  at Oxide.Plugins.MonumentOwner.ConsoleCmd_ResetCooldown (ConsoleSystem+Arg arg) [0x0000f] in <2d63056119e54e4486eec557953128a3>:0 
  at Oxide.Plugins.MonumentOwner.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x018a4] in <2d63056119e54e4486eec557953128a3>: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.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <15f61ddda771464d8246ebdce8ff4811>:0

Changed Status from Pending to Work in Progress

Changed Status from Work in Progress to Fixed

Changed Fixed In to Next Version