FAQ-Schema Support for ACF-Repeater on Product Categories

Hi There,

I just tried to follow your Tutorials to automate FAQ-Markups for ACF-Repeater Fields.
However I could not make it work.

Field Names are:

prod-cat-faq for the Repeater itself
• prod-cat-faq-question for the FAQ Question
• prod-cat-faq-answer for the FAQ Answer

I tried the following codes:

add_filter( 'rank_math/json_ld', function( $data, $jsonld ) {	
    if ( is_product_category() ) {
        $queried_object = get_queried_object_id();
        if ( ! have_rows('prod-cat-faq', "product_cat_".$queried_object) ) {
            return $data;
        }
        $data['faqs'] = [
            '@type' => 'FAQPage',
        ];
        while ( have_rows('prod-cat-faq', "product_cat_".$queried_object) ) {
            the_row();
            $data['faqs']['mainEntity'][] = [
                '@type' => 'Question',
                'name' => esc_attr( get_sub_field('prod-cat-faq-question', "product_cat_".$queried_object) ),
                'acceptedAnswer' => [
                    '@type' => 'Answer',
                    'text' => esc_attr( get_sub_field('prod-cat-faq-answer', "product_cat_".$queried_object) ),
                ],
            ];
        }
    }
    return $data;
}, 10, 2 );

add_filter( 'rank_math/json_ld', function( $data, $jsonld ) {
	if( ! have_rows('prod-cat-faq') ) {
		return $data;
	}
    $data['faqs'] = [
        '@type' => 'FAQPage',
    ];
    while( have_rows('prod-cat-faq') ) {
		the_row();
        $data['faqs']['mainEntity'][] = [
            '@type' => 'Question',
            'name'  => esc_attr( get_sub_field('prod-cat-faq-question') ),
            'acceptedAnswer' => [
                '@type' => 'Answer',
                'text'  => esc_attr( get_sub_field('prod-cat-faq-answer') ),
            ],
        ];
    }
    return $data;
}, 10, 2 );

Can you help me in order to make it work?

Kind regards,
Daniel