Why is my code in the msGetOrder snippet being executed multiple times (3 times)?

Question

MODX

Good morning, Modx experts, I have a question of this nature, I am finalizing the ordering functionality, namely integration with Frontpad.
I add my code to the msGetOrder snippet, which is executed after clicking the checkout button, but my code is executed several times (3 times), as a result of which 3 identical orders come to Frontpad at once.

if (!empty($toPlaceholder)) {
    $modx->setPlaceholder($toPlaceholder, $output);
} 
else {
    
  // Код находится в данном месте 		
      
    return $output;
}

I can not figure out why this is happening, tell me what is the reason.
Thank you.