Fatal error: Uncaught Error: Call to a member function getData() on null in /var/www/vhosts/nowakowitsch.de/shop.nowakowitsch.de/app/code/TemplateMonster/AjaxCompare/Plugin/Product/Compare/Add.php:58 Stack trace: #0 /var/www/vhosts/nowakowitsch.de/shop.nowakowitsch.de/vendor/magento/framework/Interception/Interceptor.php(135): TemplateMonster\AjaxCompare\Plugin\Product\Compare\Add->aroundExecute() #1 /var/www/vhosts/nowakowitsch.de/shop.nowakowitsch.de/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Catalog\Controller\Product\Compare\Add\Interceptor->Magento\Framework\Interception\{closure}() #2 /var/www/vhosts/nowakowitsch.de/shop.nowakowitsch.de/generated/code/Magento/Catalog/Controller/Product/Compare/Add/Interceptor.php(26): Magento\Catalog\Controller\Product\Compare\Add\Interceptor->___callPlugins() #3 /var/www/vhosts/nowakowitsch.de/shop.nowakowitsch.de/vendor/magento/framework/App/Action/Action.php(108): Magento\Catalog\Controller\Product\Compare\Add\Interceptor->execute() #4 /var/www/vhosts/now in /var/www/vhosts/nowakowitsch.de/shop.nowakowitsch.de/app/code/TemplateMonster/AjaxCompare/Plugin/Product/Compare/Add.php on line 58