Fatal error: Uncaught Error: Call to a member function getIdentities() on null in /usr/sites/jeep.ua/www/app/code/Magefan/Blog/Block/Post/View.php:24 Stack trace: #0 /usr/sites/jeep.ua/www/vendor/magento/module-page-cache/Model/Layout/LayoutPlugin.php(71): Magefan\Blog\Block\Post\View->getIdentities() #1 /usr/sites/jeep.ua/www/vendor/magento/framework/Interception/Interceptor.php(146): Magento\PageCache\Model\Layout\LayoutPlugin->afterGetOutput(Object(Magento\Framework\View\Layout\Interceptor), '<script>\n re...') #2 /usr/sites/jeep.ua/www/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Layout\Interceptor->Magento\Framework\Interception\{closure}() #3 /usr/sites/jeep.ua/www/generated/code/Magento/Framework/View/Layout/Interceptor.php(39): Magento\Framework\View\Layout\Interceptor->___callPlugins('getOutput', Array, Array) #4 /usr/sites/jeep.ua/www/vendor/magento/framework/View/Result/Page.php(258): Magento\Framework\View\Layout\Interceptor->getOutput() #5 /usr/sites/jeep.ua/www/vendor in /usr/sites/jeep.ua/www/app/code/Magefan/Blog/Block/Post/View.php on line 24