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A technical problem with the server created an error...

A technical problem with the server created an error...

Estimados, tengo la versión 2.3.5.p2, y no puedo resolver este error:

A technical problem with the server created an error. Try again to continue what you were doing. If the problem persists, try again later.


el debug.log señala esto:

[2021-03-04 14:10:10] main.DEBUG: Request validation failed for action "Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor" {"exception":"[object] (Magento\\Framework\\App\\Request\\InvalidRequestException(code: 0): Invalid request received at /home2/cti65199/public_html/vendor/magento/module-backend/App/Request/BackendValidator.php:176)"} []


El detalle de la linea que se señala esta en bold...


public function validate(
RequestInterface $request,
ActionInterface $action
): void {
if ($action instanceof AbstractAction) {
//Abstract Action has built-in validation.
if (!$action->_processUrlKeys()) {
throw new InvalidRequestException($action->getResponse());
} else {
//Fallback validation.
if (!$this->validateRequest($request, $action)) {
throw $this->createException($request, $action);


He actualizado, compilado, reindexado y limpiado las caches.... sin resultados

He probado estas soluciones sin resultados:


This is the bug in Magento 2.3 latest version, but you can fix this issue by change below code.
Go to this file: /vendor/magento/module-theme/view/adminhtml/ui_component/design_config_form.xml and please remove "fileUploader" and add "imageUploader".


This error can occur when there is a problem applying a filter to the current grid. It can be cleared by removing the records from the ui_bookmark table for your user.
If you aren't sure about your user id, run SELECT email, user_id FROM admin_user;.
Then run DELETE FROM ui_bookmark WHERE user_id = [USER ID]

This should clear the stored filter. However, it won't fix the underlying problem, so if you use the same filter, the error will occur again.
In the case I was investigating, it turned out that the data migration tool had migrated a product with no SKU. Giving it a value for SKU prevented the filter error.


Desde ya muchas gracias por su lectura y tiempo en responder,

Un abrazo