Problema script php+mysql

[freshli]

Buongiorno a tutti,

potete darmi qualche dritta su questo script? Funzionava su un vecchio server casalingo, ma adesso sul nuovo hosting non funziona, rimane la pagina in bianco e non attualizza il database.

Qualche idea?

    <form method="post" action="actualizar.php" enctype="multipart/form-data">
        <label><span>ACTUALIZAR CATALOGO (catalog-A-B.txt)</span><input name="file" type="file" required="required" accept="text/plain"></label>
        <input name="opt" type="hidden" value="catalog" />
        <input type="submit" value="Subir">
    </form>
    <form method="post" action="actualizar.php" enctype="multipart/form-data">
        <label><span>ACTUALIZAR CLIENTES (claves-clientes-web-A-B.txt)</span><input name="file" type="file" required="required" accept="text/plain"></label>
        <input name="opt" type="hidden" value="clientes" />
        <input type="submit" value="Subir">
    </form>
<?php        }
    else{        
        if ($_FILES["file"]["error"] > 0)
            echo "Error: " . $_FILES["file"]["error"] . "<br />";
        else        
        {
            $lines = file($_FILES["file"]["tmp_name"]);    //array con 1 producto por linea
            include('config.php');    //acceso a la base de datos
            $mysqli = new mysqli($db_host,$db_user,$db_pass,$db_name);
            if ($mysqli->connect_errno) {
                echo("Error conectando con la base de datos: {$mysqli->connect_error}");
                exit;
            }
            $mysqli->set_charset("utf8");
            $mysqli->query("SET AUTOCOMMIT=0;");
            $mysqli->query("START TRANSACTION;");
            if ($_POST['opt'] == 'catalog') {
                $mysqli->query("TRUNCATE TABLE catalog");
                foreach ($lines as $line) {
                    $codigo = intval(substr($line, 0, 6));
                    $descripcion = $mysqli->real_escape_string(rtrim(substr($line, 6, 45)));
                    $precio = floatval(substr($line, 51, 6));
                    $iva = intval(substr($line, 59, 2));
                    $pvf = floatval(substr($line, 65, 6));
                    $familia = intval(substr($line, 72, 4));
                    $grupo = substr($line, 75, 1);
                    $mysqli->query("INSERT INTO catalog (codigo, descripcion,precio,iva,pvf,familia,grupo) VALUES ($codigo, '$descripcion',$precio,$iva,$pvf,$familia,'$grupo');");
                }
            }
            else {    //claves_clientes.txt
            $mysqli->query("TRUNCATE TABLE clientes");
                foreach ($lines as $line) {
                    $datos = split('\?', $line);
                    $codigo = intval($datos[0]);
                    $nombre = $mysqli->real_escape_string(trim($datos[1]));
                    $userid = $mysqli->real_escape_string(trim($datos[2]));
                    $password = $mysqli->real_escape_string(trim($datos[3]));
                    $grupo = $mysqli->real_escape_string(trim($datos[4]));
                    $mysqli->query("INSERT INTO clientes (codigo_cliente, nombre,userid,password,grupo) VALUES ($codigo, '$nombre','$userid','$password', '$grupo');");
                }
            }
            if ($mysqli->query("COMMIT;") === TRUE)
            {
            //TODO: Muestra mensaje actualización realizado con exito?>
            <p>Base de Datos actualizada</p>
        <?php  }
        else
        {    
            //TODO: Muestra mensaje fallo en la actualización
            printf("Error: %s\n", $mysqli->error);
        }
        }
    }
    }
?>

[freshli]

Ho cambiato la dimensione massima del file upload del php nel cpanel del hosting e il timeout a 60 secondi (non posso aumentarlo di +)

Ora lo script funziona però mi da questo errore:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, webmaster@xxxxxx.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.