I'm trying to get the raw HTML out of TinyMCE editor. Here is the code I am using

      tinymce.init({
          selector: 'textarea',
          plugins: 'a11ychecker advcode casechange export formatpainter image editimage linkchecker autolink lists checklist media mediaembed pageembed permanentpen powerpaste table advtable tableofcontents tinycomments tinymcespellchecker',
          toolbar: 'a11ycheck addcomment showcomments casechange checklist code export formatpainter image editimage pageembed permanentpen table tableofcontents',
          toolbar_mode: 'floating',
          tinycomments_mode: 'embedded',
          tinycomments_author: 'Author name',

         
        });

        console.log (tinymce.get('content-text'))

In the console it says null. I have also used the active editor function.

console.log (tinymce.activeEditor.getContent())

Doing this gives me an error

Uncaught TypeError: Cannot read properties of null (reading 'getContent')
    at contact-us.html:62:43

I'm using TinyMCE version 6.1