为什么通过应用脚本创建的PDF文件全部损坏？

Question

我有一个脚本，该脚本应在每次提交表单时创建并发送发票。直到上周开始发送的所有PDF文件都损坏时，它的运行效果一直很好。它可以在我的其他Google帐户上正常运行，但是无论我尝试使用哪种帐户，它们仍然会发送损坏的文件。我将附上我的代码

function invoices() {

  var iSS = SpreadsheetApp.openById("1jozNdq0Cs3aDjQ6OxY9QlkfrafDtF8Cy3VmtrxIlfP8");
  var deleted = iSS.getSheetByName('Invoice')
  iSS.deleteSheet(deleted)
  var temp = iSS.getSheetByName('Template')
  temp.copyTo(iSS)

   var rename = iSS.getSheetByName('Copy of Template');
  rename.setName('Invoice')

  var iS = iSS.getSheetByName('Invoice');
  var calcSS = SpreadsheetApp.openById("1743Slg7tHISIO1kQsVWRAX9y-CSYk00SJIbaF02BlBs");
  var calcS = calcSS.getSheetByName('Calendar');

  var getName = calcS.getRange("B2").getValue();
  iS.getRange("B3").setValue(getName)

  var invNumGet = calcS.getRange("K2").getValue();
  var invNumSet = iS.getRange("F12");
  invNumSet.setValue(invNumGet)

  var dataRange = calcSS.getSheetByName('TeacherReference').getRange("Y2").getValue();
 // var rowRange = calcSS.getSheetByName('TeacherReference').getRange(1, 1, 
dataRange.getLastRow()).getValues();
  //iS.getRange("E4").setValue(dataRange+4)
  for (var i=1;i<dataRange+4;i++) {
    if (calcSS.getSheetByName('TeacherReference').getRange(i,1).getValue()==getName){

     var add = SpreadsheetApp.openById("1HFpKxSxBPeFMvWMBCjTPX6YvceT_raReV8A8- fiumgA").getSheetByName('Teacher Master List').getRange(i,15)
var added = add.getValue();
add.setValue(added + 1)

var address = calcSS.getSheetByName('TeacherReference').getRange(i,4).getValue();
iS.getRange("B4").setValue(address)

var phone = calcSS.getSheetByName('TeacherReference').getRange(i,7).getValue();
iS.getRange("B6").setValue(phone)

var email = calcSS.getSheetByName('TeacherReference').getRange(i,11).getValue();
iS.getRange("B7").setValue(email)

var fullName = calcSS.getSheetByName('TeacherReference').getRange(i,13).getValues();
iS.getRange("B3").setValue(fullName)


}
   }

 var startDate = calcS.getRange("E2").getValue();
  iS.getRange("G14").setValue(startDate)
 var endDate = calcS.getRange("F2").getValue();
  iS.getRange("G15").setValue(endDate)

 var Travel = calcS.getRange("H2").getValue();
  iS.getRange("G25").setValue(Travel);

  var getRow = calcS.getDataRange();
  var getRange = calcS.getRange(5,2,getRow.getLastRow()).getValues();
 var getRowRange = getRange.length;
  var rowRange = getRowRange-4
 iS.insertRows(20,rowRange)


 iS.getRange(19,2,rowRange+4).setValues(getRange)

 var dates = calcS.getRange(5,5,getRow.getLastRow()).getValues();
  iS.getRange(19,5,rowRange+4).setValues(dates)

var hours = calcS.getRange(5,7,getRow.getLastRow()).getValues();
   iS.getRange(19,6,rowRange+4).setValues(hours)

  var totalPS = calcS.getRange(5,9,getRow.getLastRow()).getValues();
   iS.getRange(19,7,rowRange+4).setValues(totalPS)  

   sendInvoice()

}

function sendInvoice(){ // this is the function to call
  var ss = SpreadsheetApp.openById("1jozNdq0Cs3aDjQ6OxY9QlkfrafDtF8Cy3VmtrxIlfP8");
  var sh = ss.getSheets()[1]; // it will send sheet 1 which is the second sheet in the 
spreadsheet.
  // if you change the number, change it also in the parameters below
  var shName = sh.getName()
  sendSpreadsheetToPdf(1, shName, sh.getRange('B15').getValue()+", 
"+sh.getRange('B7').getValue(),"Invoice for "+sh.getRange("E3").getValue(),"Date Range 
from  
"+sh.getRange('G14').getValue()+" to "+sh.getRange('G15').getValue());
}

function sendSpreadsheetToPdf(sheetNumber, pdfName, email,subject, htmlbody) {
   var spreadsheet = 
SpreadsheetApp.openById("1jozNdq0Cs3aDjQ6OxY9QlkfrafDtF8Cy3VmtrxIlfP8");
  var spreadsheetId = spreadsheet.getId()  
  var sheetId = sheetNumber ? spreadsheet.getSheets()[sheetNumber].getSheetId() : null;  
  //var url_base = spreadsheet.getUrl().replace(/edit$/,'');
  var url_base = 'https://docs.google.com/spreadsheets/d/'+SpreadsheetApp.getActiveSpreadsheet().getId()+'/';

  var url_ext = 'export?exportFormat=pdf&format=pdf'   //export as pdf

+ (sheetId ? ('&gid=' + sheetId) : ('&id=' + spreadsheetId)) 
// following parameters are optional...
+ '&size=A4'      // paper size
+ '&portrait=true'    // orientation, false for landscape
+ '&fitw=true'        // fit to width, false for actual size
+ '&sheetnames=true&printtitle=false&pagenumbers=true'  //hide optional headers and 
footers
      + '&gridlines=false'  // hide gridlines
      + '&fzr=false';       // do not repeat row headers (frozen rows) on each page

  var options = {
    headers: {
      'Authorization': 'Bearer ' +  ScriptApp.getOAuthToken(),
    }
  }

  var response = UrlFetchApp.fetch(url_base + url_ext, options);
  var blob = response.getBlob().setName(pdfName + '.pdf');
  if (email) {
 var mailOptions = {
   attachments:blob, htmlBody:htmlbody
 }
MailApp.sendEmail(
   email, 
   subject+" (" + pdfName +")", 
   "html content only", 
    mailOptions);

  }
}