Auto-update owner's picture using a code

This is my current code by the way… but it didn’t work

$w.onReady(function () {
 let userId = wixUsers.currentUser.id
 wixData.query("MemberPage")
    .eq('profilePicture', userId)
    .find()
    .then( (results) => {
    let membersData = results.items[0];
    let ownerId = membersData._id;

    wixData.query("Messages")
    .eq('profilePicture', ownerId)
    .find()
    .then(()=>{
    })
    .catch( (err) => {
 let errorMsg = err;
        });
    })
})