I have a connection error in php

This appears to me every time when I connect to database

Access denied for user 'pnrntqbm_****'@'185.100.180.30' (using password: YES)

This user have all privileges, and this is the script I use

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<?php

$servername = "my site name";
$username = "pnrntqbm_****";
$password = "password";
$database = "pnrntqbm_****";

// Create connection
$conn = new mysqli($servername, $username, $password, $database);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
?>