php - Why I failed to query database? -

currently, i'm using 000webhost build website. configure wordpress in 000webhost free hosting. currently, problem when try login, shows me message

 failed query database access denied user 'id1351040_wp_f95ca011d778539df40db16f9d312e34'@'%' database 'login_table' 

based on wordpress pages, created form , coding shown below

<form id="form1" name="form1" method="post" action="../wp-content/themes/main/process.php" onsubmit="return check();"> 

according phpmyadmin, directory /public_html/wp-content/themes/main/process.php let form action link here. code process.php shown below:

<?php error_reporting(e_all & ~e_notice); error_reporting(e_all & ~e_notice & ~e_deprecated);  // connect server , select database $con = mysqli_connect("localhost", "id1351040_wp_f95ca011d778539df40db16f9d312e34", "xxxxxx", "id1351040_wp_f95ca011d778539df40db16f9d312e34"); mysqli_select_db($con,"login_table") or die(mysqli_error($con));  // values passe form in login.php file $username = $_post['user']; $password = $_post['pass'];  // prevent mysql injection $username = stripcslashes($username); $password = stripcslashes($password); $username = mysqli_real_escape_string($con, $username); $password = mysqli_real_escape_string($con, $password);  // query database user $result = mysqli_query($con, "select * login id = '$username' , password = '$password'")             or die("failed query database ".mysqli_error($con)); $row = mysqli_fetch_array($con, $result);  session_start(); if($row['id'] == $username && $row['password'] == $password ){     header( 'location: https://xxxxxx/' ) ;      } else{     echo "failed login!"; }  ?> 

the screenshot phpmyadmin screenshot of phpmyadmin result of result