Product tabs disappear when there’s not a video

Hi, i tried your plugin, but when it is activated then my custom product tabs get disappear in my template product page. IMHO the plugin is using the woocommerce_product_tabs filter without returning any tabs if there’s not any videos defined for the product.

To fix this issue, I suggest you to edit the functions/functions-primary.php file at line 470 like this:

    // create the video for the product page
if (!function_exists ('api_pv_video_tab')) {
    add_filter('woocommerce_product_tabs', 'api_pv_video_tab');
    function api_pv_video_tab($tabs) {
        // get the tab information from settings
        $product_id = get_the_ID();
        $plugin_options = wp_parse_args(get_option('api_pv_options'), api_pv_default_options());
        $hide_video_tab = sanitize_text_field($plugin_options['api_pv_hide_video_tab']);
        
        // get the currently displayed videos
        $video_urls_manual = api_pv_get_video_urls($product_id, 'manual');
        $video_urls_manual_count = count($video_urls_manual);
        $video_urls = api_pv_get_video_urls($product_id, 'imported');
        $video_urls_count = count($video_urls);
        $total_videos = $video_urls_manual_count + $video_urls_count;
        if (is_array($video_urls) || is_array($video_urls_manual)) {
            if (!empty($video_urls) || !empty($video_urls_manual)) {
                if ($hide_video_tab !== '1') {
	                
	                $tab_name = sanitize_text_field($plugin_options['api_pv_tab_name']);
			        if ($tab_name == '') {
			            $tab_name = 'Videos';
			        }
			        $tab_priority = sanitize_text_field($plugin_options['api_pv_tab_priority']);
			        if ($tab_priority == '') {
			            $tab_priority = 30;
			        }
			    	$tabs['api_pv_video_tab'] = array(
			    		'title' 	=> __($tab_name, 'woocommerce'),
			    		'priority' 	=> $tab_priority,
			    		'callback' 	=> 'api_pv_video_tab_content'
			    	);
    	
                    return $tabs;
                }
            }
        }
        
        return $tabs;
    }
}

thank you