Timed out waiting for plugin to be compiled: BetterChat
Failed to call hook 'OnPlayerChat' on plugin 'BetterChat v5.2.14' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.BetterChat.OnPlayerChat (BasePlayer bplayer, System.String message, ConVar.Chat+ChatChannel chatchannel) [0x0000c] in <430afcc9d0914b25852714eb71d0e4bf>:0
                                             6kb/s in, 33kb/s out
  at Oxide.Plugins.BetterChat.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x000ed] in <430afcc9d0914b25852714eb71d0e4bf>: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 <d59b507fd76240e5b62228d0eae39b73>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <d59b507fd76240e5b62228d0eae39b73>:0

Had to delete configs and reload them - all good.