Syntax error on line 1

Hi!

My website is https://btutourpromotions.com

It started giving this error and I really can’t figure it out.

Parse error: syntax error, unexpected ‘define’ (T_STRING) in /home2/boulevd9/public_html/btutourpromotions/wp-config.php on line 1

I’ve been searching through the forum, but I couldn’t find an answer. What troubles me is the fact that the error seems to be on line 1. I’m not an expert, but I’m pretty sure that the line 1 from my code is fine, since it is ‘<?php’ (without the tags).

This is how my code starts:

<?php
/** Enable W3 Total Cache */define('WP_CACHE', true); // Added by W3 Total Cache/** Enable W3 Total Cache */ //Added by WP-Cache Manager

/** Enable W3 Total Cache */ //Added by WP-Cache Manager

I really can’t figure it out. I apologize if it’s a silly mistake, as I said, I’m no expert.

Please, any assistance would be really appreciated.

Thank you.