I don’t think that is the problem because:
1. The session are created when the getShoppingCart() method is called in the TheCartPress.class (in the session directory will be a new file when a new session is started). I’ve tested it making a new session, put some values in it, and it’s working. That’s why I don’t understand the cart session why remains empty.
2. I think the default option is writable for the session directory.
First, if I put something in the cart, $this->shopping_cart_items[$shopping_cart_id] = $sci; (ShoppingCart.class line 59) sets the details in the shopping_cart_items array… But I don’t find when this array gets into the session. Could you help me in this please, maybe with this I can find the problem.