andstyle

hello, my website is https://www.andstyle.com.au and i am using WP-ecommerse for shopping cart. the problem is shopping cart (choose some items by adding to cart and see that items on checkout page) became empty after attempt login. So customers need to re-choose the items after their login which will be really annoying.
Would anyone can please have me to solve this problem???

hello, i’ve read all comments above and i’ve tried almost all suggestion…
but it seems not working for me.

Ok. Here is my problem. i’ve changed product price for example $40 to $44.95 recently. When i choose the size (variations set) and click ‘add to cart’, updated price is applied which is GOOD. But, i was able to click ‘add to cart’ button from the flip product thumbnail image, although size wasn’t chosen, product went to the cart and old price is added. It seriously makes me so upset as i tried my best to fix it..!!!
PLease help me~~
https://www.andstyle.com.au