php msysql problem

I have this php script in my siteground account

https://lapalabramx.com/ip.php

I get

Fatal error: Call to a member function query() on boolean in /home/galaplas/public_html/lapalabramx.com/ip.php on line 21


In hostgator the same script:

http://apuntatemx.com/ip1.ph

Works ok

Code error line is

$result = $conn->query($sql);

I have googled and find nothing. I dont know if it is adiffrence in php or my sql

<?php
$servername = "localhost";
$username = "***";
$password = "***";
$dbname = "galaplast_respuestas";
$actividad="Paco";
// Create connection
$conn = mysqli_connect($servername, $username, $password,$dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} else {
	echo "ConnectionOk";
}
$ip=get_client_ip();
echo $ip;
$ipdec=ip2long($ip);
echo $ipdec;
$sql="select * from blocks where  " . $ipdec ."  BETWEEN ips AND ipe";
echo $sql ."<br>";
$result = $conn->query($sql);
$resultip = $conn->query($sql);
$rowip = $resultip->fetch_assoc();
if( $resultip->num_rows>0) {
$pais="MEXICO";
} else {
	$pais="NOMEX";
}
		
$conn->close();
?>

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