Reset the viewcount.

flatbase-reset-viewcount.php

<?php
//* Do NOT include the opening php tag

// trigger the function
nice_reset_viewcount();

// define the function.
function nice_reset_viewcount() {
  
  $query = new WP_Query( 'post_type=article' );
  
  if ( $query->have_posts() ) : 
    
    while ( $query->have_posts() ) : $query->the_post();
      
      update_post_meta( get_the_ID(), '_pageview_count', 0 );
    
    endwhile;
  
  endif;
  
  wp_reset_postdata();
  
}