Error 404 page pagination in category

Good afternoon

On the category screen when I enter the pool table category it lists me all the products of this category, the big problem is my pagination when I click next page it gets lost and gives me 404 error. Here is the complete code:

$category    = get_the_terms( $post->ID, 'product_cat' );
                $id_category = $terms[0]->term_id;
                $name        = $terms[0]->name;
                $slug        = $terms[0]->slug;              

                $args = array( 'post_type'       => 'product', 
                                'product_cat'    => $name, 
                                'post_status'    => 'publish',
                                'posts_per_page' => 2,
                                'paged'          => get_query_var('paged') ? get_query_var('paged') : 1,
                                'tax_query' => array( array(
                                    'taxonomy'         => 'product_cat',
                                    'field'            => 'slug', 
                                    'terms'            => get_query_var( 'product_cat' )
                                )),
                                'orderby' => 'rand'
                            );
                $loop = new WP_Query( $args );    
                if ( $loop->have_posts() ) {
                   while ( $loop->have_posts() ) : $loop->the_post();
                     global $product;
                     Aqui faço minha lógica para imprimir o produto somente
                    endwhile;                         
                } else { ?>
                    Nenhum produto cadastrado 
                }

                echo paginate_links( array(
               'base' => str_replace( 999999999, '%#%', get_pagenum_link( 999999999 ) ),
               'format' => '?paged=%#%',
               'current' => max( 1, get_query_var('paged') ),
               total' => $loop->max_num_pages,
               'prev_next' => true,
               'prev_text' => 'Página Anterior',
               'next_text' => 'Próxima Página',
               'before_page_number' => '-',
               'after_page_number' => '>',
               'show_all' => false,
               'mid_size' => 3,
               'end_size' => 1
       ));
       wp_reset_postdata();