Pagination link is not working /page/2 - NOT FOUND - Wordpress

Go to admin Dashboard then Settings->Reading then set Blog pages show at most is equal to you query posts_per_page. So in your query if you set posts_per_page => 2 then Blog pages show at mostwill be 2

This is what I found and resolved the issue I had!

[...] I needed to go into the wp-admin page (the wordpress dashboard) and go to Settings then Reading and in the "Blog pages show at most" field I changed the value from '10' to '6' (the number of posts I indicated in $wp_query->query('showposts=6&cat=1'.'&paged='.$paged);)

use following paged query

if ( get_query_var('paged') ) { $paged = get_query_var('paged'); }elseif ( get_query_var('page') ) { $paged = get_query_var('page'); }else { $paged = 1; }    $produtos = new WP_Query(array(            'post_type'      => 'blog',            'posts_per_page' => -1,            'orderby'        => 'date',            'order'          => 'asc',            'paged'          => $paged,            'tax_query'      => array(                array(                    'taxonomy' => 'categorias',                    'field'    => 'slug',                    'terms'    => ACTIVE                )            )        ));        while ( $produtos->have_posts() ) : $produtos->the_post();        //CONTENT        endwhile;        echo get_pagination($produtos);