Remote Connection to DBA MYSQL + PHP

Hello, I'm trying to make a test connection to a server called *

  

infinityfree

I'm using php with PDO. Call to connect.

 <?php 


try {
    $connex = new PDO("mysql:host=sql206.epizy.com;dbname=epiz_21864346_controle_estoque","epiz_21864346","kuNg2kQjR8XR");
      $connex->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  } catch(PDOException $e) {
      echo 'ERROR: ' . $e->getMessage();
  }

Detail of the server I'm using

Errorthatisreturningme

Can anyone help me?