Issued with adding it to server.

As soon as I downloaded it and installed it, I get the following error codes : 

Failed to call hook 'OnServerInitialized' on plugin 'GuessNumberEvent v2.3.8' (FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.) at System.Text.StringBuilder.AppendFormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x000f9] in <ff4e3fe86250407285eaebda8f185c35>:0 at System.String.FormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x00023] in <ff4e3fe86250407285eaebda8f185c35>:0 at System.String.Format (System.String format, System.Object arg0) [0x00008] in <ff4e3fe86250407285eaebda8f185c35>:0 at Oxide.Plugins.GuessNumberEvent.ScheduleNextEvent () [0x00086] in <f5325393b7b84bb7bded5268fe13a228>:0 at Oxide.Plugins.GuessNumberEvent.OnServerInitialized () [0x0002d] in <f5325393b7b84bb7bded5268fe13a228>:0 at Oxide.Plugins.GuessNumberEvent.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0006a] in <f5325393b7b84bb7bded5268fe13a228>:0 at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <795304323ac74a298b8ed190a1dfa739>:0 at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <beb2b64691c64e2b95b99491bd85442c>:0 at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <beb2b64691c64e2b95b99491bd85442c>:0

As well as :

Failed to run a 1.00 timer in 'GuessNumberEvent v2.3.8' (FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.) at System.Text.StringBuilder.AppendFormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x000f9] in <ff4e3fe86250407285eaebda8f185c35>:0 at System.String.FormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x00023] in <ff4e3fe86250407285eaebda8f185c35>:0 at System.String.Format (System.String format, System.Object arg0) [0x00008] in <ff4e3fe86250407285eaebda8f185c35>:0 at Oxide.Plugins.GuessNumberEvent.ScheduleNextEvent () [0x00086] in <f5325393b7b84bb7bded5268fe13a228>:0 at Oxide.Plugins.GuessNumberEvent.ProcessGuess (Oxide.Core.Libraries.Covalence.IPlayer player, System.String message) [0x0008f] in <f5325393b7b84bb7bded5268fe13a228>:0 at Oxide.Plugins.GuessNumberEvent+<>cDisplayClass17_0.<OnUserChat>b0 () [0x00000] in <f5325393b7b84bb7bded5268fe13a228>:0 at Oxide.Core.Libraries.Timer+TimerInstance.FireCallback () [0x00018] in <beb2b64691c64e2b95b99491bd85442c>:0

Please advise.

self resolved, plugin works!

Changed Status from Pending to Not a Bug

Changed Fixed In to 2.5.4