Upgrading Drupal

Hello guys,

I'm on Debian 10, upgrading Drupal 9.3.4 from 9.2.6. I already have composer version updated to 2.2.5. While I ran the command

'sudo composer update drupal/core "drupal/core-*" --with-all-dependencies'

I got this error showing:

[Symfony\Component\Console\Exception\CommandNotFoundException]  
  Command "update/core" is not defined.

I already have set 'TRUE' on  ['update_free_access'] in the settings.php.

Why "update/core" is not defined ?  Anybody know about this error? I searched for this error and Google has nothing on it.

My site was in the latest version Drupal 8 with the modules ready for D9.

The composer.json is outside the docroot folder, and looks like the following:

This happens on only some of my sites. For example, I want to update drush:

# composer require drush/drush -W
Using version ^11.0 for drush/drush
./composer.json has been updated
Running composer update drush/drush --with-all-dependencies
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

Hi,

I recently upgraded some minor versions of modules and upgraded Drupal core-recommended to 9.3.3 from 9.2.9. I followed the usual drush updatedb, drush cim -y drush cr and everything looks fine.

In my local env, everything is fine. However, in my dev environment in platform.sh, drush cim keeps importing ALL 860 config files. It doesn't matter how many times you run drush updatedb, drush cim -y and drush cr, it ALWAYS keeps importing the same files.

Running import through the gui yields the same result.

When I try to install it from within Drupal (I have version 9.3.3) I get this error:

An AJAX HTTP error occurred.
HTTP Result Code: 500
Debugging information follows.
Path: /batch?id=74&op=do_nojs&op=do
StatusText: Internal Server Error
ResponseText: The website encountered an unexpected error. Please try again later.

Any idea of how I can solve this problem?

Regards
R