Hmm can't quit get this right

I have a script to cycle through contacts table to emails all contacts.

which works perfectly.

However I now want to as apart of that email process add a record into EmaiLog table for the email of that contact being emailed. (the will be other fields to record ie name/date etc  but I can deal with that later.

This is the bas script

let a := (select Contacts where 'GDPR Status' = 1 and EmailSend);
for myVar in slice(a, 0, 150) do
    let thisBody := first((select Contact_Mailing).xLetter1);
    let myEmail := userEmail();
    let xFirst := myVar.FirstName;
    let myAtt := first((select Contact_Mailing).Advert6);
    thisBody := replace(thisBody, "{FirstName}", xFirst);
    sendEmail({
        from: myEmail,
        to: myVar.Email,
        subject: EMailSubject,
        text: EmailText,
        html: thisBody,
        attachments: myAtt
    });
    myVar.(EmailSend := 0)
end

above works perfectly !

This is the amend script for the log 3 lines but not accepting 

let a := (select Contacts where 'GDPR Status' = 1 and EmailSend);
for myVar in slice(a, 0, 150) do
    let thisBody := first((select Contact_Mailing).xLetter1);
    let myEmail := userEmail();
    let xFirst := myVar.FirstName;
    let xEmail :=myVar.Email;
    let myAtt := first((select Contact_Mailing).Advert6);
    thisBody := replace(thisBody, "{FirstName}", xFirst);
let i := (create EmailLog);
i.(EmailLog.Email := xEmail); (this line giving an error)

    sendEmail({
        from: myEmail,
        to: myVar.Email,
        subject: EMailSubject,
        text: EmailText,
        html: thisBody,
        attachments: myAtt
    });
    myVar.(EmailSend := 0)
end

EmailLog is a valid table and Email is a valid field of that table. It is not related - but even if i do create a link it still will not let me save that line? Where am I going wrong?