mactaff checkboxes

function onEdit(e) {
  if (e.range.getSheet().getName() != 'Data') { return; }
  if (e.range.columnStart == 3 && e.value == "TRUE") {
    e.range.offset(0, 1).setValue(new Date());
  } else if (e.range.columnStart == 3 && e.value == "FALSE") {
    e.range.offset(0, 1).clearContent();
  } else if (e.range.columnStart == 3){
     e.range.insertCheckboxes()
     if (!e.range.offset(0,1).isBlank()){
       e.range.setValue(true)
     }
  }
}

/* not working onEdit(e) script */
function onEdit(e) {
  if (e.range.getSheet().getName() != 'Data') { return; }
  const activeSheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet()
  const activeSelection = activeSheet.getSelection().getActiveRange()
  const activeA1 = activeSelection.getA1Notation()
  console.log(activeA1)
  if (e.range.columnStart == 3 && e.value == "TRUE") {
    activeSheet.getRange(activeA1).offset(0, 1).setValue(new Date());
  } else if (e.range.columnStart == 3 && e.value == "FALSE") {
    activeSheet.getRange(activeA1).offset(0,1).clearContent();
  } else if (e.range.columnStart == 3){
     e.range.insertCheckboxes()
     const offsetValues = activeSelection.getValues().flat()
     for(i = 0; i < offsetValues.length; i++){
       if (offsetValues[i] != ''){
         e.range.offset(i,0).setValue(true)
       }
     }
  }
}

/* Run this via -> Macro -> import and then Marcro -> Run */
function func(){
  const a1 = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().getSelection().getActiveRange().getA1Notation()
  Browser.msgBox(a1)
}