Why is infa not displayed from additional fields in chunks?

Question

MODX

Hello, why is the info contained in additional fields, such as "Images", "author" and so on, not displayed?
Who can be a mentor for an hour or two?

<div class="post_block">
    <div class="poster">
      <div class="poster_heading">
      <div class="post_img">
        <a href="/" title=""><img src="/" alt="alt" /></a>
        <div class="time_block">
          <span class="post_time"></span>
        </div>
        <span class="post_author"></span>
          </div>
    </div>
    <div class="post_title"><a href="" title=""></a></div>
  </div>
</div>

Answer 1

Understand what placeholders are , snippets can handle them in their own way, for example,

Answer 2

Try to bring them out like this.
Also write where this code is located, how it is displayed.
[+author+]
[+timeaudio+]
[+pagetitle+]

Answer 3

Read the documentation about the parameter
&tvPrefix=`tv.`

Answer 4

Everyone writes correctly: