FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list. System.String.FormatHelper (System.Text.StringBuilder result, IFormatProvider provider, System.String format, System.Object[] args) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/String.cs:1925) System.String.Format (IFormatProvider provider, System.String format, System.Object[] args) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/String.cs:1873) System.String.Format (System.String format, System.Object[] args) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/String.cs:1868) UnityEngine.DebugLogHandler.LogFormat (LogType logType, UnityEngine.Object context, System.String format, System.Object[] args) (at D:/unity/Runtime/Export/Logger/DebugLogHandler.cs:9) UnityEngine.Logger.LogFormat (LogType logType, System.String format, System.Object[] args) (at D:/unity/Runtime/Export/Logger/Logger.cs:113) UnityEngine.Debug.LogFormat (System.String format, System.Object[] args) (at D:/unity/Runtime/Export/Debug.bindings.cs:108) Services.GuildService.OnGuild (System.Object sender, SkillBridge.Message.GuildResponse response) (at Assets/Scripts/Services/GuildService.cs:126) Network.MessageDistributer`1[System.Object].RaiseEvent[GuildResponse] (System.Object sender, SkillBridge.Message.GuildResponse msg)

这个错误是由于在调用`string.Format`方法时，格式字符串中的占位符和参数列表的数量不匹配所导致的。请确保格式字符串中的占位符数量与传递给`string.Format`方法的参数数量相匹配。

在你提供的代码中，错误发生在`Services.GuildService.OnGuild`方法的调用中。你需要检查该方法中对`string.Format`的调用，确保格式字符串和参数列表的匹配。

例如，如果你有一个格式字符串"Hello {0}, your age is {1}"，那么你需要确保传递给`string.Format`方法的参数列表中有两个参数，分别对应占位符{0}和{1}。

如果你需要进一步帮助，请提供具体的代码片段，我将尽力帮助你解决问题。