Wordpress If Statement Assistance

No idea why I cant get this to work.

<table border="0" bordercolor="#FFCC00" style="background-color:#FFFFCC" width="100%" cellpadding="3" cellspacing="3">
    <tr>
        <td>Ticket Date</td>
        <td>Ticket Number</td>
        <td>Material</td>
        <td>Net Weight</td>
        <td>Price</td>
        <td>Paid</td>
    </tr>

    <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

<? if ( the_field('paid') == 1 ) {
echo "YES";
} ?>

    <tr>
        <td><?php the_field('date'); ?></td>
        <td><?php the_title(); ?></td>
        <td><?php the_field('material'); ?></td>
        <td><?php the_field('weight'); ?></td>
        <td><?php the_field('price'); ?></td>
        <td><?php the_field('paid'); ?></td>
    </tr>
    <?php endwhile; else: ?>
        <p><?php _e('No posts by this author.'); ?></p>

    <?php endif; ?>
</table>

PHP:

Here is a table and I only want to show the result if the_field('paid') is = 1. Now when I return the results I have 2 results. The first one is 1 and the other is NULL. This is a checkbox.

No matter what I do thought I can't get a statement for if that is set. Also it ECHOs the 1 result for some odd reason in my if statement as you can see on http://aaronnimocks.com/basicmetals/open-tickets

Any help is appreciated!