"Add block" in content type lesson triggers warning

Problem/Motivation

Getting the following warning after adding a new node of type "lesson" and pressing the button "Add block"
Undefined array key "target_bundles" in Drupal\paragraphs_browser\Form\ParagraphsBrowserForm->buildForm() (Zeile 142 in /usr/www/users/arborv/dev/modules/contrib/paragraphs_browser/src/Form/ParagraphsBrowserForm.php)

Steps to reproduce

Press the button "Add block" in a new node of type lesson.

Testing with Drupal 10.4.3, and PHP 8.3.17.