Fatal error: Class 'JJG\Exception' not found in Imap.php on line 64

[putout]

cool code. good work. not using ssl. any tips?
i upgraded to php 5.6
thank you
code is
include 'Imap.php';
$host = "localhost";
$user= "user";
$pass= "pass";
$port= "143";
$folder = "INBOX";

use \JJG\Imap as Imap;
$mailbox = new Imap($host, $user, $pass, $port, $folder);
$mailbox->getMailboxInfo();`

Fatal error: Class 'JJG\Exception' not found in Imap.php on line 64

also tried
$ssl = "false"; and $ssl = false;
$mailbox = new Imap($host, $user, $pass, $port, $ssl, $folder);

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[github-actions]

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