Can't get bind_param() working correctly

Question

I'm trying to do a simple insert on my database after retrieving a value from it, I'm following the same procedure to retrieve a value from my database as to insert values in it, but I get the following error:

Fatal error: Uncaught Error: Call to a member function bind_param() on boolean

Here's my code:

    $getuid = $mysqli->prepare("SELECT id FROM members WHERE email = ?");
    $getuid->bind_param("s", $email);
    $getuid->execute();
    $getuid->bind_result($uid);
    $nombre = $_POST['nombre'];
    $direccion = $_POST['direccion'];
    $codpost = $_POST['codpost'];
    $municipio = $_POST['municipio'];
    $estado = $_POST['estado'];
    while($getuid->fetch()){
        echo("INSERT INTO infoclientes VALUES ($uid, $nombre, $direccion, $codpost, $municipio, $estado)");
        $infocte = $mysqli->prepare("INSERT INTO infoclientes VALUES(?, ?, ?, ?, ?, ?)");
        $infocte->bind_param("ssssss", $uid, $nombre, $direccion, $codpost, $municipio, $estado);
        $infocte->execute();
        $infocte->close();
    }
    $getuid->close();

Apparently, the error comes out from

$infocte->bind_param("ssssss", $uid, $nombre, $direccion, $codpost, $municipio, $estado);

This is the output from the echo before the second bind_param:

INSERT INTO infoclientes VALUES (1, Fernando Cervantes, Av. Pie de la cuesta 2, 76158, Querétaro, Querétaro)

Answer 1

I got it to work! I just moved $getuid->close() to the line before the echo(). I guess it was as @LouisLoudogTrottier mentioned, I was trying to prepare both queries while the same connection was opened.