Please check this email script

Can someone scan this to see if there is any reason why the email suddenly stopped going to me.  I have added a comment at the end of a line to show what I changed.

let CR := "";
let myPdf := printAndSaveRecord(this, "TASKS");
let myName := "New Task.pdf";
importFile(this, myPdf, myName);
let emailHTML := null;
let emailSubject := "A new Task has been added for: " + concat('EMAIL NAME LIST') + " " + 'TASK TITLE'; (Added the concat bit)
let emailText := "Att: " + concat('EMAIL NAME LIST') + CR + CR + (Added the concat bit)
    "Please refer to the attached task." +
    CR +
    CR +
    CR +
    "Kind Regards" +
    CR +
    CR +
    userName() +
    " " +
    CR +
    " ";
sendEmail({
    from: userEmail(),
    to: userEmail(),
    cc: "",
    bcc: "",
    subject: emailSubject,
    html: "",
    text: emailText,
    attachments: file(this, myName)
});
'EMAIL SENT' := true;
alert("Email sent to: " + concat('EMAIL NAME LIST'))

I cannot imagine the concat ('EMAIL NAME LIST') is causing the problem.  the concat is not required but handily adds a comma between names in the field)

Could it be because Ninox did not like me sending a few test emails and stopped me.