Ошибки сайта php/mysql помогите срочно!

 <?php 
session_start(); 
 
require ("../settings/config.php"); 
 
$semail = $_SESSION['email']; 
$spass = $_SESSION['pass']; 
 
$query = 'SELECT * FROM users WHERE Email="'.$semail.'" AND Password="'.$spass.'"'; 
$result = mysqli_query($con,$query); 
$user = mysqli_fetch_assoc($result);  
$userid = $user['ID']; 
if(!$user || $_SESSION['auth'] == false) 
{ 
    header('Location: /pages/authorization.php'); 
    exit();        
} 
$id = $_GET['id']; 
 
 
$spquery = 'SELECT * FROM buy WHERE ID="'.$id.'" and `BuyID` = "'.$userid.'"'; 
$spresult = mysqli_query($con, $spquery); 
if(!mysqli_num_rows($spresult)) { 
   header('Location: /'); 
    exit();   
} 
 
$sproducts = mysqli_fetch_assoc($spresult);  
 
$ids = $sproducts['ProductsID']; 
 
$pquery = 'SELECT * FROM products WHERE ID="'.$ids.'"'; 
$presult = mysqli_query($con, $pquery); 
$products = mysqli_fetch_assoc($presult);  
 
$sspquery = 'SELECT IP FROM CheckIPAdress WHERE ID="'.$id.'"'; 
$sspresult = mysqli_query($con2, $sspquery); 
if(!mysqli_num_rows($sspresult)) { 
   header('Location: /'); 
    exit();   
} 

 $sspquery = 'SELECT IP FROM CheckIPAdress WHERE ID="'.$id.'"'; 
$sspresult = mysqli_query($con2, $sspquery); 
if(!mysqli_num_rows($sspresult)) { 
   header('Location: /'); 
    exit();   
}