not working insert to linux

Good afternoon, I have a small problem with my digital ocean server, when I upload my script to run it, the inserts from my site do not work, I have done everything but I don’t know what to do now, I show a screenshot of the small test code that have

<?php 

 $dbhost = "localhost";
 $dbuser = "root";
 $dbpass = "PassowrdHere";
 $db = "DBHere";


 $con = new mysqli($dbhost, $dbuser, $dbpass,$db, 3306);


	echo "<pre>";
	echo $con->host_info . "\n";
	echo $con->connect_errno . "\n";

			/*	$query = "INSERT INTO `empleados`(`cedula`) VALUES ('123')";
				$insert = mysqli_query($con, $query);*/

				$query = "INSERT INTO `empleados`(`cedula`) VALUES ('123')";

				$insert = $con->query($query);

				var_dump($insert);

				if (!$insert) {
					$response = array(
						'icon' => 'error',
						'mensaje' => 'No fue posible guardar el nombre del rol.', 
					);
				}else{
					$response = array(
						'icon' => 'success',
						'mensaje' => 'El usuario se creo correctamente.', 
					);
				}
		
		
	echo json_encode($response);
?>