Drupal 8.x

I am very new to Drupal. I have a running website on Red Hat Linux. I followed the following steps to upgrade to 8.9.9 https://www.drupal.org/docs/updating-drupal/updating-drupal-core-manually. In short I have done,

Select all the files in the top-level directory (also hidden files starting with a dot) as well as the 'core' and 'vendor' directories, and delete them. Be sure not to delete the 'modules', 'profiles', 'sites', and 'themes' directories.

I have a content type that has a title, body, an auto-incremented field for account numbers. Every time a user needs an account number they fill in the blanks an it will display the information to them. I have created a view that has a table with the information including the week number it was created on. I am having problems filtering out the entries that were only created during the current week or current month. In other words if the content was created in the week (48) of the year and it is still week (48).

First, I have been researching this for 4 days and have tried every possible solution I have found on the internet
Trying to create a new Drupal project running composer create-project drupal/recommended-project folder --no-install -vvv

It fails with a 404 when downloading the recommended-project.json file. This is the URL being sent for that file:

https://packages.drupal.org/files/packages/8/p2/drupal/recommended-project.json

I created a custom module to display a news feed. When a content is created, the module will create a "Message". The user "Flag" the parent "Group" and receives the messages.

My problem :

When a user flags a "Group", he receives all the "Message", even the "Message" before the Flag.

I want the user to only receive "Message" from the date of the Flag.

You must therefore filter the view like this:
The "Message" created after the Flag date are displayed.

Hi,

I have a multilingual website in English and Hebrew.

How do I translate to Hebrew on my English website?

Thank you!