Parse Error

I suspect you are using a version of PHP prior to 5.4. Unfortunately Fast eBay Listings requires PHP 5.4 (it uses the new Traits feature – https://php.net/manual/en/language.oop5.traits.php).

I would highly recommend you upgrade (if you can) to a later version of PHP, as versions 5.3, 5.4 and 5.5 have now all reached end of life and could have unpatched security vulnerabilities:-
https://php.net/supported-versions.php