Cartzilla Marketplace - Fix for Error on Products page with Vendor Subscription Module

functions.php

if ( ! function_exists( 'cartzilla_dokan_show_custom_subscription_info' ) ) {
    function cartzilla_dokan_show_custom_subscription_info() {
        $vendor_id = dokan_get_current_user_id();

        if ( dokan_is_seller_enabled( $vendor_id ) ) {

            $remaining_product = \DokanPro\Modules\Subscription\Helper::get_vendor_remaining_products( $vendor_id );

            if ( '-1' === $remaining_product ) {
                return printf( '<p class="dokan-info">%s</p>', esc_html__( 'You can add unlimited products', 'cartzilla' ) );
            }

            if ( $remaining_product == 0 || ! ( get_user_meta( dokan_get_current_user_id(), 'can_post_product', true ) == '1' ) ) {

                if( defined('DOKAN_PLUGIN_VERSION') ) {
                    $permalink = dokan_get_navigation_url( 'subscription' );
                } else {
                    $page_id   = dokan_get_option( 'subscription_pack', 'dokan_product_subscription' );
                    $permalink = get_permalink( $page_id );
                }
                $info = sprintf( __( 'Sorry! You can not add or publish any more product. Please <a href="%s">update your package</a>.', 'cartzilla' ), $permalink );
                echo "<p class='dokan-info'>" . wp_kses_post( $info ) . "</p>";
                echo "<style>.dokan-add-product-link{display : none !important}</style>";
            } else {
                echo "<p class='dokan-info'>" . wp_kses_post( sprintf( esc_html__( 'You can add %d more product(s).', 'cartzilla' ), $remaining_product ) ) . "</p>";
            }
        }
    }
}