Trivia 2.0 2.0.140

Probably issue with a better chat, its not working properly, and at the end i got kicked of server

Failed to call hook 'OnPlayerChat' on plugin 'Trivia v2.0.130' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.Trivia+TriviaManager.RewardPlayer (BasePlayer player) [0x004ed] in <2f60883abf1c443397aa0307bb2e72b1>:0 
  at Oxide.Plugins.Trivia+TriviaManager.EndEvent (BasePlayer player, System.Boolean answeredCorrectly) [0x00047] in <2f60883abf1c443397aa0307bb2e72b1>:0 
  at Oxide.Plugins.Trivia+TriviaManager.Answer (BasePlayer player, System.String answer) [0x001b6] in <2f60883abf1c443397aa0307bb2e72b1>:0 
  at Oxide.Plugins.Trivia.OnPlayerChat (BasePlayer player, System.String message, ConVar.Chat+ChatChannel channel) [0x0000d] in <2f60883abf1c443397aa0307bb2e72b1>:0 
  at Oxide.Plugins.Trivia.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00515] in <2f60883abf1c443397aa0307bb2e72b1>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <87ce9ac9776a48658bc55eae6debe38b>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b6d06fce9e044af4a6ddc8d724bd3b0b>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b6d06fce9e044af4a6ddc8d724bd3b0b>:0 
[Better Chat] [Global] 웃 MrFairplay Bradley
{
  "Channel": 0,
  "Message": "웃 MrFairplay Bradley",
  "UserId": "76561198880385643",
  "Username": "MrFairplay",
  "Color": "#FFFFFF",
  "Time": 1709595411
}
[Better Chat] [Global] 웃 MrFairplay 2000
{
  "Channel": 0,
  "Message": "웃 MrFairplay 2000",
  "UserId": "76561198880385643",
  "Username": "MrFairplay",
  "Color": "#FFFFFF",
  "Time": 1709595470
}
Kicking 92.0.253.243:62482/76561198880385643/MrFairplay (Steam Status "AuthTicketCanceled")

Now everything working.... only some times correct answers not counted! and at the end of event its looks very silly

Is this ready to go out the box or do i gotta set it all up?

where do we add the api for open source?