Drupal 8.x

Hello,
I was trying to upgrade to 8.9.2 from 8.9.1. 

I then  tried to install phpoffice/phpspreadsheet.

Composer returned...
Using version ^1.14 for phpoffice/phpspreadsheet
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

Hi !

Drupal seems to block account creation with email of type aaa@bbb.ccc.dd

--> Is there any config/ways to be able to authorize this kind of email in default email field ?

Thanks,

Hi,
I am new to Drupal.

I want to post image for my article type.
I am able to post title and summary.

But Unable to Post image with it using postman.

URL :

http://obp.dev.drupal.com/drupal8/web/entity/node?_format=hal_json

POST:   

When I name a content type "batch" and attempt to save a new node of this type, I get a WSOD. The content type only has a title field.

When I replicate the content type and call it something else, like "shipment," the node saves just fine.

The system creates the node, but it will not display it. Instead, I'm getting this error anytime I want to view the node:

I am getting the following error when my site was updated from 8.86 to 8.92:

The website encountered an unexpected error. Please try again later.

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "library.libraries_directory_file_finder". in Drupal\Component\DependencyInjection\Container->get() (line 153 of core/lib/Drupal/Component/DependencyInjection/Container.php).

The update.php will not run

Any assistance would be greatly appreciated.