Module development and code questions

$soapMessage = <<<EOT
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:int="http://interfaces.test.com/">
  <soapenv:Header/>
  <soapenv:Body>
    <int:getTestData>
      <arg0>
        <testName>Testing</testName>
        <testAddress>00, Test Avenue</testAddress>
        <testPin>pin_no={$pin_no}</testPin>
      </arg0>
    </int:getTestData>
  </soapenv:Body>
</soapenv:Envelope>
EOT;

Hello,

In my ckeditor5.yml file I have configured some drupalElementStyles   

I am encountering an unexpected error website error while working with Twig in Drupal

This is the Twig Code : <a href="/node/add/catalogued_activities_status?id={{ label }} ({{ id }})">Add Status</a>

It was working perfectly well in Drupal 8 but when I upgraded to Drupal 9, I encountered an unexpected website error

I am testing out Drupal after years of experience with WordPress. The strongest motivator was the performance, but without the Gutenberg module, I wouldn't have considered Drupal, so I really appreciate the hard work on this module.

When I try to write Functional test I used a drupalGet({path}) function. When I run a test and trying to access any page of site I got an error Behat\Mink\Exception\ExpectationException: Current response status code is 404, but 200 expected  if I tried get access to <front> or administration pages I got correct response in result. The site is multilingual. If the problem in multilingual of the site, how will to use a properly the function drupalGet?

Hello,

Our organization is looking at some modules (Citations) but I noticed it not covered by the Drupal Advisory Policy.

Suggestions on how to test it for vulnerabilities or will it get certified?

The module looks great but we are worried about it's safety.

Thanks,

V