IMAP ERROR - Couldn't open stream

Hi Folks,

    I am getting preeeetty frustrated here.  I have a php page in which I need to connect to a email account and pull all the emails. I am using localhost to create this page. (Windows 64 pro - php 5.6.25 - Apache -2.4.23 - WampServer)
The mail server is hosted at HostGator.

The error msg:

Warning: imap_open(): Couldn't open stream {trvlagt.com:143/debug/imap/ssl/novalidate-cert}INBOX in C:\wamp\www\AcademyEmails\mytest.php on line 24

AND

Cannot connect to Gmail:TLS/SSL failure for trvlagt.com: Invalid token, probably not an SSL server

We are - for testing - using non-ssl setting. And I know the port is correct, the username, password etc is correct.
Below is the line of coding - I starred out the actual server/user/pwd for posting.

$inbox = imap_open('{imap.***.com:143/debug/imap/ssl/novalidate-cert}INBOX','**********','********') or die('Cannot connect:' . imap_last_error());

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Any help apperciated - pretty urgent for me....
thank you