WordPress deprecated, comments issue

Basiclly, this is my index.php code:

<?php 
    get_header();
?>      
        <!-- WRAPPER START -->
        <section id="wrapper">
            <!--  START DYNAMIC PART -->
            <?php 
                if(have_posts()):
                    while(have_posts()):
                        the_post();
            ?>
            <!-- MAIN CONTENT START-->
            <section id="main-content">

                <!-- SIDEBAR START -->
                <aside id="tab-lists">
                    <?php if(!dynamic_sidebar('telerik-sidebar')): ?>

                    <?php endif; ?>
                    <?php if(!dynamic_sidebar('telerik-sidebar2')): ?>
                    <?php endif; ?>
                </aside>    
                <!-- SIDEBAR END -->

                <!-- BIG POST START -->
                <div id="big-post">
                    <article>
                        <header>
                            <h2>
                                <?php the_title(); ?>
                            </h2>
                            <p class="post-info">
                                Posted by <?php the_author(); ?> in on <?php the_date('d-m-Y'); ?> | <a href="<?php the_permalink();?>"><?php comments_number( 'no comment', 'one comment', '% comments' ); ?></a>
                            </p>
                        </header>
                        <?php the_post_thumbnail(); ?>
                        <div class="post-text">
                            <?php the_content(); ?>     
                        </div>
                    </article>
                </div>
                <!-- BIG POST END -->
                <div id="com">
                    <?php 
                        comments_template('',true); 
                    ?>
                </div>
            </section>
            <!-- MAIN CONTENT END -->
            <?php 
                endwhile;
                endif;
            ?>
            <!-- END DYNAMIC PART -->
        </section>
        <!-- WRAPPER END -->
<?php 
    get_footer();
?>

It worked perfect on my localhost, but when I uploaded it into wordpress I get the Notice: Theme without comments.php is deprecated since version 3.0 with no alternative available. Please include a comments.php template in your theme. in /f5/funkz/public/wp-includes/functions.php on line 2670 – error, so i made a comments.php, and put the just my comments_template('',true); in there (in php tags) and on his place in the index.php i placed comments_template(); to call the file, but then i get memory issue error…I read in some places that can be resolved by increasing it in php.ini , but I didn’t find it in my server’s folders 🙁 . If you have a solution thank you in advance.