Fatal error: Uncaught Error: Call to undefined method ND\CatalogWidget\Helper\Data::getIdentities() in /data/www/vendor/magento/module-catalog/Block/Product/ProductList/Related.php:145 Stack trace: #0 /data/www/generated/code/ND/Catalog/Block/Product/ProductList/Related/Interceptor.php(63): Magento\Catalog\Block\Product\ProductList\Related->getIdentities() #1 /data/www/vendor/magento/module-page-cache/Model/Layout/LayoutPlugin.php(75): ND\Catalog\Block\Product\ProductList\Related\Interceptor->getIdentities() #2 /data/www/vendor/magento/framework/Interception/Interceptor.php(146): Magento\PageCache\Model\Layout\LayoutPlugin->afterGetOutput(Object(Magento\Framework\View\Layout\Interceptor), '<!-- Google Tag...') #3 /data/www/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Layout\Interceptor->Magento\Framework\Interception\{closure}() #4 /data/www/generated/code/Magento/Framework/View/Layout/Interceptor.php(494): Magento\Framework\View\Layout\Interceptor->___callPlugins('getOutput', Array, in /data/www/vendor/magento/module-catalog/Block/Product/ProductList/Related.php on line 145