search not working - Fatal error - magento 2

Question

My website is in Magento ver. 2.2.3

early my search functionality was working properly ..but no idea suddenly from last week i am getting below error message ...

Fatal error: Uncaught Error: Call to a member function getNext() on null in /home/website/public_html/generated/code/Magento/Catalog/Block/Product/ListProduct/Interceptor/Interceptor.php:1465 Stack trace: #0 /home/website/public_html/generated/code/Magento/Catalog/Block/Product/ListProduct/Interceptor/Interceptor.php(13): Magento\Catalog\Block\Product\ListProduct\Interceptor\Interceptor->___init() #1 /home/website/public_html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(111): Magento\Catalog\Block\Product\ListProduct\Interceptor\Interceptor->__construct(Object(Magento\Catalog\Block\Product\Context), Object(Magento\Framework\Data\Helper\PostHelper), Object(Magento\Catalog\Model\Layer\Resolver), Object(Magento\Catalog\Model\CategoryRepository\Interceptor), Object(Magento\Framework\Url\Helper\Data), Array) #2 /home/website/public_html/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(66): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\Catalog...', in /home/website/public_html/generated/code/Magento/Catalog/Block/Product/ListProduct/Interceptor/Interceptor.php on line 1465

below is above path interceptor.php code line 1465:

/**
 * {@inheritdoc}
 */
public function ___init()
{
    $pluginInfo = $this->pluginList->getNext($this->subjectType, '___init');
    if (!$pluginInfo) {
        return parent::___init();
    } else {
        return $this->___callPlugins('___init', func_get_args(), $pluginInfo);
    }
}

/**
 * {@inheritdoc}
 */
public function ___callParent($method, array $arguments)
{
    $pluginInfo = $this->pluginList->getNext($this->subjectType, '___callParent');
    if (!$pluginInfo) {
        return parent::___callParent($method, $arguments);
    } else {
        return $this->___callPlugins('___callParent', func_get_args(), $pluginInfo);
    }
}

i tried :

rm -rf generated
rm -rf var/cache
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento cache:clean
php bin/magento cache:flush

and then

php bin/magento setup:static-content:deploy -f 
php bin/magento cache:clean
php bin/magento cache:flush

but still getting above error message .... as new to magento2 - no idea what going wrong ...

thanks

Answer 1

run this in your CLI

sudo chmod 777 -R /opt/lampp/htdocs/magento2.2.3/

php bin/magento setup:static-content:deploy -f

php bin/magento cache:clear