Google Sheets: Send email when conditon is met

Question

I wrote a script that is supposed to automatically send a list from a google sheet via email when the value of cell E7 is above 1. It works if I change the value of E7 manually. But when the data is transfered into the google sheet via an external application, it doesn't work. (I already set up a trigger) What an I doing wrong? Can anyone help me with this?

function FunzioneFE(e) { 
    var ss = SpreadsheetApp.getActive();
    var sheet = ss.getSheetByName("Foglio2");
    var Cella = sheet.getRange("E7").getValue();
    {
if(Cella   > 1){
    {
    var emailRange = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Foglio2").getRange("C2");
    var emailAddress = emailRange.getValue();
    var Text = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Foglio2").getRange("D2");
    var typ = Text.getValue();
    var aliases = GmailApp.getAliases();
    Logger.log(aliases)
   
    var ws = ss.getSheetByName("Foglio2");
    var h1 = ws.getRange("D2").getValue();
    var headers = ws.getRange("A1:B1").getValues();
    var descr = "FoodEngel"; //headers[0][0];
    const tipo = headers[0][1];
    var lr = ws.getLastRow();
    var tableRangeValues = ws.getRange(2,1,lr-1,2).getValues();
    var htmlTemplate = HtmlService.createTemplateFromFile("email");
    var file = SpreadsheetApp.getActive();
    var sheet = file.getSheetByName("Foglio2");
    htmlTemplate.h1 = h1;
    htmlTemplate.descr = descr;
    htmlTemplate.tipo = tipo;
    htmlTemplate.tableRangeValues = tableRangeValues;
  
    var htmlForEmail = htmlTemplate.evaluate().getContent();
    
    console.log(htmlForEmail);
   
    GmailApp.sendEmail(
      emailAddress,
      typ,
      'Bitte Lesen.',{
      htmlBody: htmlForEmail,
      name: "FoodEngel",
      from: aliases[0]
    })}; 
  
  }}}