Shop page not displayed

Hello. Could you please check my shop page.
It shows correctly on most computers, but it stoped showing on my laptop. It gies a static 404 error page.
http://systemkit.ru/shop/

Modifications
Quick CSS

#top .price span, #top del, #top ins {
    display: inline; 
    text-decoration: none;
    font-size: 25px;
    line-height: 24px;
    font-weight: 600;
    color: #8197e5
}

@media only screen and (max-width: 767px){
.responsive #socket .sub_menu_socket {
    display: block !important;
}}
@media only screen and (max-width: 767px) {
.responsive #scroll-top-link {
    display: block !important;
}}
.woocommerce-message {
  display: none !important;
}
@media only screen and (max-width: 767px) {
#top .av-image-caption-overlay  {
  display: none !important;
}}
#top .main_color .primary-background, .main_color .primary-background a, div .main_color .button, .main_color #submit, .main_color input[type='submit'], .main_color .small-preview:hover, .main_color .avia-menu-fx, .main_color .avia-menu-fx .avia-arrow, .main_color.iconbox_top .iconbox_icon, .main_color .iconbox_top a.iconbox_icon:hover, .main_color .avia-data-table th.avia-highlight-col, .main_color .avia-color-theme-color, .main_color .avia-color-theme-color:hover, .main_color .image-overlay .image-overlay-inside:before, .main_color .comment-count, .main_color .av_dropcap2, #top #wrap_all .main_color .av-menu-button-colored > a .avia-menu-text, .main_color .av-colored-style .av-countdown-cell-inner, .responsive #top .main_color .av-open-submenu.av-subnav-menu > li > a:hover, #top .main_color .av-open-submenu.av-subnav-menu li > ul a:hover  {
  background-color: #92b935;
}
.woocommerce-main-image.zoom.lightbox-added {
 border-color: #ffffff;
}
@media only screen and (max-width: 989px) {
.html_mobile_menu_tablet .container #advanced_menu_toggle, .html_mobile_menu_tablet #advanced_menu_hide {
left: 60%;
}}

@media only screen and (max-width: 767px) {
.responsive #top .cart_dropdown {
right: 4.5%;
}}

Functions.php

add_theme_support( 'avia_custom_shop_page' );

/*
** Отключение вкладок на странице товара
*/
 
add_filter( 'woocommerce_product_tabs', 'woo_remove_product_tabs', 98 );
 
function woo_remove_product_tabs( $tabs ) {
 
unset( $tabs['description'] ); // Убираем вкладку "Описание"
unset( $tabs['reviews'] ); // Убираем вкладку "Отзывы"
unset( $tabs['additional_information'] ); // Убираем вкладку "Свойства"
 
return $tabs;
 
}