Chapter 7 p223 shopping cart stucked

browser shows "your basket is empty!" after I clicked "buy it!",

I checked my code 5 times compare to the book,
I looked into the SQL tables, after the click,
in the Baskets table, there are two BasketID created,
in the BasketItems table, one BasketItemID is created,

is this why the basket is not showing contents inside ?
i am new at this, so frustrated,

can somebody kindly help? thank you...

i am revising my question, after commenting out the bounce problem on p220 step 6, the shopping cart works... however, i am still wondering how to correct the bounce problem...