bug woocommerce

There is a problem in the URL of products woocommerce extension
They have at the URL category name
Example
http://www.XXXX.co.il/shop/cat2/pr2/
If I add any text in the product category despite still displayed URL address has changed and I need to get a 404 page
Here is an example
http://www.XXXX.co.il/shop/AAAA/pr2/
http://www.XXXX.co.il/shop/BBBB/pr2/
http://www.XXXX.co.il/shop/CCCC/pr2/
http://www.XXXX.co.il/shop/ABCDEFG/pr2/
But all these pages leading original page even though he did not actually exist, and I have to get in that situation Page 404
Can anyone help me