TypeError: Drupal\paragraph_blocks\ParagraphBlocksLabeller::isParagraphFromLibrary(): Argument #1

Thanks for reporting @rakesh.gectcr
The patch in #2 won't work I'm afraid. There is no \Drupal\paragraphs_plus\Entity\Paragraph class. I think checking for an instance of Drupal\paragraphs\Entity\Paragraph would be better.

@rakesh.gectcr please use the latest 4.x-dev to fix this issue. If that works well for you, I'll create a new release with this fix.

@basvredeling

following code from

  /**
   * Check if this paragraph is from the paragraphs library.
   *
   * This is only relevant if the paragraphs_library module is enabled.
   *
   * @param \Drupal\paragraphs\Entity\Paragraph $paragraph
   *   The paragraph block entity.
   *
   * @return bool
   *   True if paragraph is promoted to the paragraphs library.
   */
  public function isParagraphFromLibrary(Paragraph $paragraph
  ): bool {
    return $paragraph->bundle() === 'from_library';
  }

from 4.x branch is working fine.

Thanks @rakesh, this is now part of the 4.1.3 release.