we got two exception, the java stack below, we don’t know why, could you please help us(Aspose15.20(JDK))
java.lang.StringIndexOutOfBoundsException: String index out of range: 0
at java.lang.String.charAt(String.java:658)
at com.aspose.words.zzZT.zzZ(Unknown Source)
at com.aspose.words.zzZT.zzZ(Unknown Source)
at com.aspose.words.zz55.zzZ(Unknown Source)
at com.aspose.words.FieldFormula.zzRX(Unknown Source)
at com.aspose.words.FieldFormula.zzZXp(Unknown Source)
at com.aspose.words.zz2F.zzH(Unknown Source)
at com.aspose.words.zz2F.zzJ(Unknown Source)
at com.aspose.words.zz2F.zzN(Unknown Source)
at com.aspose.words.zz2F.zzQ(Unknown Source)
at com.aspose.words.zz2F.zzS(Unknown Source)
at com.aspose.words.zz2F.zzV(Unknown Source)
at com.aspose.words.zz2F.zzZh(Unknown Source)
at com.aspose.words.zz2F.zzx(Unknown Source)
at com.aspose.words.zzZN3.zzZ(Unknown Source)
at com.aspose.words.zzZN3.zzZCj(Unknown Source)
at com.aspose.words.zzZN3.zzZ(Unknown Source)
at com.aspose.words.MailMerge.zzZ(Unknown Source)
at com.aspose.words.MailMerge.execute(Unknown Source)
Caused by: java.lang.ClassCastException: com.aspose.words.zzZ9N cannot be cast to com.aspose.words.zzZTF
at com.aspose.words.zz52.zzZ(Unknown Source)
at com.aspose.words.zz52.zzZYf(Unknown Source)
at com.aspose.words.zz52.zzY(Unknown Source)
at com.aspose.words.zz53.zzZ(Unknown Source)
at com.aspose.words.zz53.zzRX(Unknown Source)
at com.aspose.words.zzWZ.zzZ(Unknown Source)
at com.aspose.words.zzWZ.zzZ(Unknown Source)
at com.aspose.words.FieldIf.zzZVD(Unknown Source)
at com.aspose.words.FieldIf.zzZ(Unknown Source)
at com.aspose.words.zz2F.zzT(Unknown Source)
at com.aspose.words.zz2F.zzU(Unknown Source)
at com.aspose.words.zz2F.zzV(Unknown Source)
at com.aspose.words.zz2F.zzU(Unknown Source)
at com.aspose.words.zz2F.zzV(Unknown Source)
at com.aspose.words.zz2F.zzZh(Unknown Source)
at com.aspose.words.zz2F.zzx(Unknown Source)
at com.aspose.words.zzZN3.zzZ(Unknown Source)
at com.aspose.words.zzZN3.zzZCj(Unknown Source)
at com.aspose.words.zzZN3.zzZ(Unknown Source)
at com.aspose.words.MailMerge.zzZ(Unknown Source)
at com.aspose.words.MailMerge.execute(Unknown Source)