Fatal error: Uncaught Error: Call to a member function getFirstItem() on integer in /var/www/televes-sa-magento/app/code/Bss/MultiWishlist/Controller/Index/Delete.php:98 Stack trace: #0 /var/www/televes-sa-magento/var/generation/Bss/MultiWishlist/Controller/Index/Delete/Interceptor.php(24): Bss\MultiWishlist\Controller\Index\Delete->execute() #1 /var/www/televes-sa-magento/lib/internal/Magento/Framework/App/Action/Action.php(102): Bss\MultiWishlist\Controller\Index\Delete\Interceptor->execute() #2 /var/www/televes-sa-magento/lib/internal/Magento/Framework/Interception/Interceptor.php(74): Magento\Framework\App\Action\Action->dispatch(Object(Magento\Framework\App\Request\Http)) #3 /var/www/televes-sa-magento/lib/internal/Magento/Framework/Interception/Chain/Chain.php(70): Bss\MultiWishlist\Controller\Index\Delete\Interceptor->___callParent('dispatch', Array) #4 /var/www/televes-sa-magento/lib/internal/Magento/Framework/Interception/Chain/Chain.php(63): Magento\Framework\Interception\Chain\Chain->invokeNext('Bss\\MultiWishl in /var/www/televes-sa-magento/app/code/Bss/MultiWishlist/Controller/Index/Delete.php on line 98