Add to Cart - Your Cart is empty

[Danny]

Hi All, i have encountered a problem with the cart: i add the product in the cart, the cart open and says "Your cart is Empty", i can open the cart on the side and it still says "Empty" till i hit F5 or manually refresh the page, then the cart shows the item i added. So the cart work but it don't show until i refresh the page.

Prestashop 1.7.6.7

Cart Module 2.0.4

Theme Modez

What i tried:

- different Browsers

- different phones, computer

- cache clean

i am able to replicate the error every time.

Any suggestion on how to debug this error?

 

 

[Danny]

I don't think is a theme problem because if i hit F5 or refresh the page the product is the the cart and showing properly.

Edited October 4, 2021 by Danny (see edit history)

[Danny]

I did few test and i think it have something to do with ajax/java

Using firefox with the console i receive this message when adding to cart

XHRPOST https://www.*******.it/it/module/ps_shoppingcart/ajax
[HTTP/2 500 Internal Server Error 401ms]

    
POST
    https://www.*******.it/it/module/ps_shoppingcart/ajax
Stato
500
Internal Server Error
VersioneHTTP/2
Trasferito1,39 kB (dim. 0
Referrer Policystrict-origin-when-cross-origin

        
    content-length
        0
    content-type
        text/html; charset=utf-8
    date
        Mon, 04 Oct 2021 07:55:31 GMT
    server
        Apache
    X-Firefox-Spdy
        h2
        
    Accept
        */*
    Accept-Encoding
        gzip, deflate, br
    Accept-Language
        it-IT,it;q=0.8,en-US;q=0.5,en;q=0.3
    Connection
        keep-alive
    Content-Length
        59
    Content-Type
        application/x-www-form-urlencoded; charset=UTF-8
    Cookie
        PHPSESSID=648f5b11290e3f70d61a2cfbab126afb; PrestaShop-36c964a7fac68732a857b568610df961=def50200eb01365f2a3c393ce12bea441277b99e95496facbec60af379e949906ee3ba9689235b03f0cbe43df30e70a1e762d718d3df5a2519c424550a0a3c19bcc13f56fc4253b694fe91f31716db66cd1a935997145a1bf5a7064389c299fb3d13dce59ccf4c66389e280bcb0e7305b0537d9ccf26806feb4f5c23f4be45c29b688e16ce74fad2f007ecd598c23e658f4f64aa5359d5078225e6149c84db2e473573181d23c7d3b5684d6b53b90a50e12f16fe2664c0bc65e979b3d9a46bd8f29b1c49c524b00687cc918f63920bef3056f3fbd6; cp-popup-last-displayed=1633334048; cp-popup-8=1633334048
    DNT
        1
    Host
        www.********.it
    Origin
        https://www.*********.it
    Referer
        https://www.*******.it/it/*****/*************-white.html
    Sec-Fetch-Dest
        empty
    Sec-Fetch-Mode
        cors
    Sec-Fetch-Site
        same-origin
    Sec-GPC
        1
    TE
        trailers
    User-Agent
        Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0
    X-Requested-With
        XMLHttpRequest

[Danny]

[03-Oct-2021 01:46:20 UTC] PHP Warning:  Declaration of Ps_ShoppingcartOverride::renderModal(Cart $cart, $id_product, $id_product_attribute) should be compatible with Ps_Shoppingcart::renderModal(Cart $cart, $id_product, $id_product_attribute, $id_customization) in /***/****/public_html/override/modules/ps_shoppingcart/ps_shoppingcart.php on line 0

This is the Log on the webserver

[Danny]

Found the culprit, it was a module for related products.

[lasseboy]

Hey!
I have the same problem, did you just disable that module and then it worked again?
It does not help me, have to refresh the page for it to end up in the shopping cart

[Danny]

Disabling the module, fixed the problem. I read many forum, it happens for many different reasons: cookies, cart id, etc, i think every situation is different.

[lasseboy]

OK thanks, have to keep on searching for the problem!