Taxonomy archive page not working ( forced to single page)

hi I am trying to make a taxonomy archive page.

I am using ‘taxonomy.php’

and the below is the code I wrote to add taxonomy

register_taxonomy('clients','post', array(
'hierarchical' => true,
'labels' => array(
'name' => _x( 'Clients', 'taxonomy general name' ),
'singular_name' => _x( 'Client', 'taxonomy singular name' ),
'search_items' => __( 'Search Clients' ),
'all_items' => __( 'All Clients' ),
'parent_item' => __( 'Parent Client' ),
'parent_item_colon' => __( 'Parent Client:' ),
'edit_item' => __( 'Edit Client' ),
'update_item' => __( 'Update Client' ),
'add_new_item' => __( 'Add New Client' ),
'new_item_name' => __( 'New Client Name' ),
'menu_name' => __( 'Clients' ),
),
'show_in_nav_menus' => true,
'show_ui' => true,
'query_var' => 'clients',
'rewrite' => array( 'slug' => 'clients', 'with_front' => false,'hierarchical' => true),
));


But the funny thing is that it works on my localhost site.

I just moved to the server with the same setting and it automatically redirects to a single post of one of the post in the taxonomy

Any advice would be great

cheers