一応、表示されていたログを貼ります。
04/28 10:24:747 : 1557/12/21 : NameCheckError : 言峰綺麗
ERROR EVENT = Daily; GAME DATE = 1557/12/21
Namespace Name = System
Class Name = String
Method Name = Substring
NameCheckError : 足軽
ERROR EVENT = Daily; GAME DATE = 1564/01/09
Namespace Name = System
Class Name = ThrowHelper
Method Name = ThrowKeyNotFoundException