ошибка

[SkyLandYT2]

System.ArgumentNullException: Value cannot be null. (Parameter 'source')
   at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   at BotLooter.Looting.LootClient.<>c__DisplayClass8_0.<GetAssetsToSend>b__10(Description d) in /Users/kotori/RiderProjects/BotLooter/BotLooter/Looting/LootClient.cs:line 195
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at BotLooter.Looting.LootClient.GetAssetsToSend(Configuration configuration) in /Users/kotori/RiderProjects/BotLooter/BotLooter/Looting/LootClient.cs:line 195
   at BotLooter.Looting.LootClient.TryLoot(TradeOfferUrl tradeOfferUrl, Configuration configuration) in /Users/kotori/RiderProjects/BotLooter/BotLooter/Looting/LootClient.cs:line 52
   at BotLooter.Looting.Looter.<>c__DisplayClass5_0.<<Loot>b__0>d.MoveNext() in /Users/kotori/RiderProjects/BotLooter/BotLooter/Looting/Looter.cs:line 39
--- End of stack trace from previous location ---
   at System.Threading.Tasks.Parallel.<>c__50`1.<<ForEachAsync>b__50_0>d.MoveNext()
--- End of stack trace from previous location ---
   at BotLooter.Looting.Looter.Loot(List`1 lootClients, TradeOfferUrl tradeOfferUrl, Configuration config) in /Users/kotori/RiderProjects/BotLooter/BotLooter/Looting/Looter.cs:line 29
   at Program.<Main>$(String[] args) in /Users/kotori/RiderProjects/BotLooter/BotLooter/Program.cs:line 69
   at Program.<Main>(String[] args)