Import of CSV (which is inside a zip) received by email automatically to the Spreadsheet

What happens is that every day I receive an email with an attached report. This attachment is zipped (.zip), and inside this zip has a CSV file.

I need this zip to be converted to CSV and that this CSV will automatically go from my email (gmail) to the google worksheet on a specific page. I made a script, but I'm doubtful where I'm getting lost. It says that the argument is invalid in line 10 (var extracted ...)

function getCSV() {
  var myLabel = GmailApp.getUserLabelByName('Relatórios X');
  var threads = myLabel.getThreads(0,1);
  var msgs = GmailApp.getMessagesForThreads(threads);
  var attachments = msgs[0][0].getAttachments();



  var csv =  attachments[0];
  var extracted = Utilities.unzip(csv);
  var string = extracted[0].getDataAsString();
  var data = Utilities.parseCsv(string);



  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getSheetByName("Relatório_aqui");
sheet.clearContents();
  var range = sheet.getRange(1,1, data.length,data[0].length);
range.setValues(data);


}