I noticed on the Themeforest.net site the portfolio pages don’t load, but when I click the ‘x’ to view the site on your server – http://themes.pixelwars.org/bookcard/ – It works fine.
I can’t get the portfolio pages to load locally or on my server. I only get a blank white page. I’ve tested it on Firefox, Chrome and Safari on a Mac. I tested it on my edited design and the original files you provided.