Module development and code questions

Hello,

It seems an update to drupal core 9.3.7 is now causing this error when clicking login or continue as guest when trying to check out. I have done some searching and haven't found an answer to this one. The error is below.

The website encountered an unexpected error. Please try again later.
Error: Class 'Drupal\commerce\EventBase' not found in include() (line 13 of modules/contrib/commerce_shipping/src/Event/ShipmentEvent.php).

Hi 

Can anyone advise me on the imminent Strong Customer Authentication (SCA) policy.  We have a Drupal 9 site running Commerce using Commerce SagePay integration.

Do i need to make changes to my setup, have any patches/updates been create for the less technical Drupal administrators.  

Do i need to do anything, I have found this comment.

Hi Team,

I am getting the API Response object PDF File in apigee edge not able to read text, Getting Encode Character in api response and 
Note: Postman am getting the proper pdf file in response
Scenario: i need to show pdf file(with out file save) in modal popup with cancel & submit button.

Every time I added a new field to my yml configs or add a new node.type.yml to my config folder in my module, I reinstall the module to see newly added fields. It is very inefficient but I couldn't find a way to write a hook for update node type in drupal. Is there a way for drupal to see my newly added yml config files? I couldn't find a proper example or document for it.

Hello.

I have this code:

```

<?php

namespace Drupal\module_hero\Plugin\Block;

use Drupal\Core\Block\BlockBase;

/**
* It provides a block called "Example hero block".
* class HeroBlock extends BlockBase{
*
* @Block(
* id = "module_hero_hero"
* admin_label = @Translation("Example hero block")
* )
*/

}

Hello.

I have this file HeroController.php:

```

<?php

namespace Drupal\module_hero\Controller;

use \Drupal\Core\Controller\ControllerBase;