I cannot open single page

I wanted to remove name of author in single page, so I removed it form the code. After that I have no access (blank page) to single page on my blog. I entered again ‘Autor wpisu’ into code, but it doesn’t work.
I put down the whole code of the single page in my WP. Where ist the mistake?

<?php get_header(); ?>

<div id="content">

	<div id="contentleft">

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

		<h1><?php the_title(); ?></h1>

		<div class="date">
			<?php the_time('F j, Y'); ?> · Autor wpisu:  <?php the_author_posts_link();?> · <?php the_author_posts_link(); ?>Tematyka: <?php the_category(', ') ?> <?php edit_post_link('(Edit)', '', ''); ?>
		</div>

		<?php the_content(__('Read more'));?><div style="clear:both;"></div>

		<!--
		<?php trackback_rdf(); ?>
		-->

		<div class="postmeta">
			<p><?php the_tags('') ?> </p>
		</div>

		<?php endwhile; else: ?>

		<p><?php _e('Sorry, no posts matched your criteria.'); </p><?php endif; ?>

		<h3>Komentarze</h3>
		<?php comments_template(); // Get wp-comments.php template ?>

	</div>

<?php include(TEMPLATEPATH."/l_sidebar.php");?>

<?php include(TEMPLATEPATH."/r_sidebar.php");?>

</div>

<!-- The main column ends  -->

<?php get_footer(); ?>

THANKS IN ADVANCE FOR YOUR HELP

[Moderator Note: Please post code or markup snippets between backticks or use the code button. Or better still – use the pastebin. As it stands, your code may now have been permanently damaged/corrupted by the forum’s parser.]