Rerolled for 3.1
You should update "pantheon-systems/drupal-integrations" from ^10.0 to ^11.0. And it will fix the issue
#25 return an error on D11.1:
PHP Fatal error: Type of Drupal\layout_paragraphs\Form\LayoutParagraphsDefaultThemeForm::$typedConfigManager must be Drupal\Core\Config\TypedConfigManagerInterface (as in class Drupal\Core\Form\ConfigFormBase) in /var/www/html/web/web/modules/contrib/layout_paragraphs/src/Form/LayoutParagraphsDefaultThemeForm.php on line 14
Fatal error: Type of Drupal\layout_paragraphs\Form\LayoutParagraphsDefaultThemeForm::$typedConfigManager must be Drupal\Core\Config\TypedConfigManagerInterface (as in class Drupal\Core\Form\ConfigFormBase) in /var/www/html/web/web/modules/contrib/layout_paragraphs/src/Form/LayoutParagraphsDefaultThemeForm.php on line 14
If a parent entity doesn't have getParentEntity() method, it returns the error below:
Error: Call to undefined method Drupal\block_content\Entity\BlockContent::getParentEntity() in Drupal\scanner\Plugin\Scanner\Paragraph->search() (line 70 of /var/www/html/web/docroot/modules/contrib/scanner/src/Plugin/Scanner/Paragraph.php)