//From
function getData(){
var spreadSheetId = "###"; //CHANGE
var dataRange = "Base Stats!A2:L"; //CHANGE
var range = Sheets.Spreadsheets.Values.get(spreadSheetId,dataRange);
var values = range.values;
return values;
}
//To
function getData(){
var spreadSheetId = "###"; // Please set your Spreadsheet ID.
var sheet = SpreadsheetApp.openById(spreadSheetId).getSheetByName("Base Stats");
var values = sheet.getRange("A2:L" + sheet.getLastRow()).getDisplayValues();
return values;
}