Did you install cops like this:
Code:
git clone https://github.com/seblucas/cops.git # or download lastest zip see below
cd cops
wget https://getcomposer.org/composer.phar
php composer.phar global require "fxp/composer-asset-plugin:~1.1"
php composer.phar install --no-dev --optimize-autoloader
I do not know if that is even possible on a QNAP.
If not, use version 1.1.2 from the cops release page.
You best bet is to keep using version 1.1.1. Why fix it if it ain’t broken?