Error: Opencart\Catalog\Model\Account\Wishlist::isProductInWishlist(): Argument #1 ($product_id) must be of type int, null given, called in /home/jocuri2/public_html/vqmod/vqcache/vq2-system_engine_loader.php on line 345
File: /home/jocuri2/public_html/catalog/model/account/wishlist.php
Line: 94

Backtrace: 0
File: /home/jocuri2/public_html/vqmod/vqcache/vq2-system_engine_loader.php
Line: 345
Class: Opencart\Catalog\Model\Account\Wishlist
Function: isProductInWishlist

Backtrace: 1
File: /home/jocuri2/public_html/system/engine/proxy.php
Line: 87
Class: Opencart\System\Engine\Loader
Function: Opencart\System\Engine\{closure}

Backtrace: 2
File: /home/jocuri2/public_html/catalog/controller/product/thumb.php
Line: 23
Class: Opencart\System\Engine\Proxy
Function: __call

Backtrace: 3
File: /home/jocuri2/public_html/vqmod/vqcache/vq2-system_engine_loader.php
Line: 112
Class: Opencart\Catalog\Controller\Product\Thumb
Function: index

Backtrace: 4
File: /home/jocuri2/public_html/catalog/controller/product/option_category.php
Line: 125
Class: Opencart\System\Engine\Loader
Function: controller

Backtrace: 5
File: /home/jocuri2/public_html/system/engine/action.php
Line: 96
Class: Opencart\Catalog\Controller\Product\OptionCategory
Function: index

Backtrace: 6
File: /home/jocuri2/public_html/system/framework.php
Line: 259
Class: Opencart\System\Engine\Action
Function: execute

Backtrace: 7
File: /home/jocuri2/public_html/index.php
Line: 27
Function: require_once