We have been getting this error the last couple days.
[Duelist] Plugin disabled: Object reference not set to an instance of an object --- at Oxide.Plugins.Duelist+<GetRandomKit>c__AnonStorey24.<>m__0 (System.String entry) [0x00000] in <85c0a943859c413a961ca51b802f2cb1>:0
at System.Linq.Enumerable.TryGetFirst[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate, System.Boolean& found) [0x0003f] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at System.Linq.Enumerable.First[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) [0x00000] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at Oxide.Plugins.Duelist.GetRandomKit () [0x00127] in <85c0a943859c413a961ca51b802f2cb1>:0
at Oxide.Plugins.Duelist.GetKit (BasePlayer player, BasePlayer target) [0x00000] in <85c0a943859c413a961ca51b802f2cb1>:0
at Oxide.Plugins.Duelist.Initiate (BasePlayer player, BasePlayer target, System.Boolean checkInventory, Oxide.Plugins.Duelist+DuelingZone destZone) [0x00267] in <85c0a943859c413a961ca51b802f2cb1>:0
at System.Linq.Enumerable.TryGetFirst[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate, System.Boolean& found) [0x0003f] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at System.Linq.Enumerable.First[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) [0x00000] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at Oxide.Plugins.Duelist.GetRandomKit () [0x00127] in <85c0a943859c413a961ca51b802f2cb1>:0
at Oxide.Plugins.Duelist.GetKit (BasePlayer player, BasePlayer target) [0x00000] in <85c0a943859c413a961ca51b802f2cb1>:0
at Oxide.Plugins.Duelist.Initiate (BasePlayer player, BasePlayer target, System.Boolean checkInventory, Oxide.Plugins.Duelist+DuelingZone destZone) [0x00267] in <85c0a943859c413a961ca51b802f2cb1>:0
01/08 21:31:28 | [Duelist] ---