System.ArgumentOutOfRangeException: Cannot be negative, and should not exceed length of string. Parameter name: startIndex at System.String.IndexOf (System.String value, Int32 startIndex, Int32 count) [0x00000] in :0 at System.String.IndexOf (System.String value, Int32 startIndex) [0x00000] in :0 at CumulusMX.TokenParser.Parse2 () [0x00000] in :0 at CumulusMX.TokenParser.ToString () [0x00000] in :0