GcExcel 라이브러리로 excel 파일 -> PDF 변환중 발생한 에러에 대한 문의입니다

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java.lang.NullPointerException: Cannot invoke "com.grapecity.datavisualization.chart.options.IValueOption.getValue()" because the return value of "com.grapecity.datavisualization.chart.options.IAxisOption.getMax()" is null

at com.grapecity.documents.excel.C.v.a(Unknown Source)

at com.grapecity.documents.excel.C.v.a(Unknown Source)

at com.grapecity.documents.excel.C.v.a(Unknown Source)

at com.grapecity.documents.excel.C.v.<init>(Unknown Source)

at com.grapecity.documents.excel.C.bq.b(Unknown Source)

at com.grapecity.documents.excel.C.bN.H(Unknown Source)

at com.grapecity.documents.excel.C.bN.H(Unknown Source)

at com.grapecity.documents.excel.C.bN.H(Unknown Source)

at com.grapecity.documents.excel.C.bN.H(Unknown Source)

at com.grapecity.documents.excel.C.bN.H(Unknown Source)

at com.grapecity.documents.excel.C.bN.C(Unknown Source)

at com.grapecity.documents.excel.C.aC.a(Unknown Source)

at com.grapecity.documents.excel.p.h.a(Unknown Source)

at com.grapecity.documents.excel.p.h.a(Unknown Source)

at com.grapecity.documents.excel.bk.write(Unknown Source)

at com.grapecity.documents.excel.bk.write(Unknown Source)

at com.grapecity.documents.excel.Workbook.a(Unknown Source)

at com.grapecity.documents.excel.Workbook.b(Unknown Source)

at com.grapecity.documents.excel.Workbook.save(Unknown Source)

위부분이 에러내용 인데요.. 해당 에러에 대한 내용을 찾아봐도 나오는것이 없어서 문의드립니다

의심가는것은 엑셀에 차트? 같은것이 있어서 그런거 같기도한데요..

해당 엑셀파일 첨부하였습니다

답변 주시면 감사하겠습니다!