Can the Elements - Archive Navigation work on a custom results.php page?

Hi there,

I am using a custom results.php page to show the results of a filter. (search and filter pro on ACF fields)

I did have it set up at one stage to use the Archive page and the Archive Navigation worked great.

I didn't think it was working on the reults.php pag so I installed wp-navi to see if that could help me.

I noticed that it was actually showing on the second page of results.

I am just wondering if I can get it working on the results.php page so I can get rid of the wp-navi (trying really hard to use minimal or only generate press plugins.

This is page 2 of the results - https://dev.scenichelicopters.com.au/margaret-river-helicopter-flights-and-tours/?sf_paged=2
This is the bottom of the code - is there some generatepress magic hook or action that I am missing?

            <div class="st-button-wrapper">
                <div class="st-button-col">
                    <a class="button" href="<?php the_field('book_url'); ?>">Book Now</a>
                </div>
            </div>
        </div>

        </div>
        </div>
        <?php
	}
	?>

	<div class="pagination">

        <div class="nav-previous"><?php next_posts_link( 'Older posts', $query->max_num_pages ); ?></div>
        <div class="nav-next"><?php previous_posts_link( 'Newer posts' ); ?></div>
        <?php
        /* example code for using the wp_pagenavi plugin */
        if (function_exists('wp_pagenavi'))
        {
            echo "<br />";
            wp_pagenavi( array( 'query' => $query ) );
        }
        ?>
	</div>
	<?php
}
else
{
    echo '<div class="not-found-container">';
    echo '<div class="not-found-item">';
    echo '<h1>Uh oh</h1>';
    echo '<p>We dont seem to have tour for that search  Please refine your filter and try again or get in touch</p>';
    echo '</div>';
    echo '</div>';
}
?>

Many thanks!