when i add an item to cart, sometimes it show no items in cart...

when i add an item to cart, sometimes it show no items in cart...
this peoblem happens sometines, about 50%... but if i keep adding, it will work soemtimes.

for example

http://less4more.com/2pcs-1520mm-bro...ets-p5969.html

add to cart, and bring to

http://less4more.com/index.php?main_page=shopping_cart

showing

New Products For April
................

if success adding to cart, just remove it from cart and try again, it may happen...

I know i change many files. but there is no way to redo all the changing, anyway to debug where problem exist?

The beauty of zen cart is the developers have created a debug file which helps you locate the problem ..

Quote:

---

root directory/ cache

---

Report back the last error here ...

sorry. no error. i know the error logging and i am sure there is no error.