I am currently struggling to write a program that automaticaly sends out an email when the value of a cell changes from 0 to 1, and cant seem to get it to work.

I want it to read the value of a specific cell on edit, see if the cells value has changed, then run an automated email send. I keep getting

TypeError: Cannot read properties of undefined (reading ‘range’).

onEdit (e)
  const specificSheet = "SHEET"   // for example
  const specificCell = "CELL"       // for example

  let sheetCheck = (e.range.getSheet().getName() == specificSheet)
  let cellCheck = (e.range.getA1Notation() == specificCell)

  if (!(sheetCheck && cellCheck)) {
    return
  }
  else {

function sendText() {
    var EmailTo = "EMAIL A";
    var EmailTo = "EMAIL B";
    var subject = "Automated Spreadsheet Access Bot";
    var body = "TEXT";

  MailApp.sendEmail(EmailTo, subject, body);
}
}