Code Filters the canonical URL for a post / dont work

Hello Polylang-community,

since the newest version of the plugin, my website doesn’t work anymore.

Here is the code:

/**
* Filters the canonical URL for a post.
*
* @param string                      $canonical    The current canonical.
* @param Indexable_Presentation|null $presentation The indexable presentation.
*
* @return string The correct canonical.
*/    
function awb_adjust_canonical_for_pagination( $canonical, $presentation ) {
    if ( ! is_null( $presentation ) && get_permalink() === $presentation->get_permalink() ) {
        $page  = get_query_var( 'page', 0 );
        $paged = get_query_var( 'paged', 0 );

       if ( ! $page && $paged >= 2 ) {
            if ( ! get_option( 'permalink_structure' ) ) {
                $canonical = add_query_arg( 'page', $paged, $canonical );
            } else {
                $canonical = trailingslashit( $canonical ) . 'page/' . user_trailingslashit( $paged, 'single_paged' );
            }
        }
    }

   return $canonical;
}

What can I do to have the newest version of the plugin?

Best regards,

onima