Magento2 Addtocart is not working after transfer site from one server to another

Question

can you please suggest me I have transferred my site from one server to another, all Magento functionality works except add to cart.

And checkout cart add controller return 500 error

I am getting below error in debug.log

Request validation failed for action "Magento\Framework\App\Action\Forward\Interceptor" {"exception":"[object] (Magento\Framework\App\Request\InvalidRequestException(code: 0): Invalid request received at /home/simplecity/public_html/vendor/magento/framework/App/Request/CsrfValidator.php:105)"} []

• Vivek Kumar: Please add the error you're getting, check error and systemlog. Check in the network and console tab on dev console ito check if you're getting any error there.
• Sanjay Shiyal: yes @VivekKumar error addedd
• ParulThakkar: can you add url here where you get this error and menu.xml file for the same ?
• Sanjay Shiyal: This error is in debug.log not in any console or network error

Answer 1

I Ignored Validation use plugin as below :

Module_Name/etc/di.xml add:

<type name="Magento\Framework\App\Request\CsrfValidator">
 <plugin name="csrf_validator_skip" type="Module\Name\Plugin\CsrfValidatorSkip" />
</type>

Module_Name/Plugin/CsrfValidatorSkip.php

namespace Module\Name\Plugin;
class CsrfValidatorSkip
{
 /**
 * @param \Magento\Framework\App\Request\CsrfValidator $subject
 * @param \Closure $proceed
 * @param \Magento\Framework\App\RequestInterface $request
 * @param \Magento\Framework\App\ActionInterface $action
 */
 public function aroundValidate(
 $subject,
 \Closure $proceed,
 $request,
 $action
 ) {
 /* Magento 2.1.x, 2.2.x */
 if ($request->getModuleName() == 'name') {
 return; // Skip CSRF check
 }
 $proceed($request, $action); // Proceed Magento 2 core functionalities
 }
}

My Error was as below:

main.DEBUG: Request validation failed for action "Module\Name\Controller\HtmlRedirect\Response\Interceptor" {"exception":"[object] (Magento\Framework\App\Request\InvalidRequestException(code: 0): Invalid request received at MagentoRoot/vendor/magento/framework/App/Request/CsrfValidator.php:105)"} []