Post installation

I installed Drupal CMS on Windows 10 WSL2 with the recommended Docker CE in the Ubuntu terminal following strictly the rules of the DDEV documentation https://ddev.readthedocs.io/en/stable/users/install/ddev-installation/#windows using the code on https://new.drupal.org/docs/drupal-cms/get-started/install-drupal-cms/install-drupal-cms-locally-with-ddev

Since I upgraded to Drupal 11 I am seeing this problem almost every time I run cache-clear from admin menu.

It runs for a very very long time and frequently ends in this error message:

The website encountered an unexpected error. Try again later.

PDOException: SQLSTATE[HY000] [1203] User xxxxx already has more than 'max_user_connections' active connections in Drupal\Component\DependencyInjection\PhpArrayContainer->createService() (line 77 of core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php).

I have read in the docs that I need to setup cron from CPanel using the following command

• wget -O - -q -t 1 https://yourdrupalsite.tld/cron/Fe0lip-huaTyeUBYlCXbsc-QI-dw > /dev/null

However I do not understand where i get this key (Fe0lip-huaTyeUBYlCXbsc-QI-dw) from? I assume it will be different for each drupal installation.

Please help.

In my logs I am getting 
Type:     views
Location     https://<domain_name>.org/admin/config/development/logging
Referrer     https://<domain_name>.org/admin/config/development/logging
Message:     A non-existent config entity name returned by FieldStorageConfigInterface::getBundles(): entity type: brick, bundle: content, field name: field_inmail
Severity:     Error

I am working on a site that will contain a list of entity locations. What I want to do is start "wider" and narrow it. (i.e. start by selecting country, then if we pick "United States" we next select the state, and so on. 

I'm encountering a couple of issues/questions.

The first is one of terminology. If I select "United States", then the next option should be to choose a "State"; however, if I select "Canada", then the next option would be to choose a "Province" (Yes, I realize I could just call it "State/Province" but...)

I'm working on a Drupal 10.5.1 site that's showing me a warning message:
Warning: Undefined array key "#submit_button" in Drupal\Core\Render\Element\Button::preRenderButton() (line 92 of core/lib/Drupal/Core/Render/Element/Button.php).

This looks like it's related to something in the Core innards of Drupal into which I'm not comfortable poking my proverbial finger.

Has anyone else been seeing this message?
Any idea of what I should do - besides ignoring it?

Urban