Help Pleas

Try out

$w.onReady(function () {
  $w("#follow").onClick(function () {
    follow();
  });
});

async function follow() {
  // Get the current user
  const currentUser = wixUsers.currentUser;

  // Get the user ID of the first user with the specified username
  const username = $w("#username").label.toString();
  const user = await wixData.query("users")
    .limit(1)
    .eq("username", username)
    .find()
    .then(results => results.items[0]);
  const userId = user._id;

  // Insert a new record into the "following" collection
  const follow = {
    followee: userId,
    follower: currentUser
  };
  await wixData.insert("following", follow)
    .then(updateValidity)
    .catch(console.log);
}

function updateValidity() {
  $w("#follow").label = "Unfollow";
}