update caused critical error for child

HI – Thanks for your response! I don’t need to override that file, that’s the error message that comes up on the website. with child theme…. Could I just make a new index in the child theme?

Hi – I tried to remove the index and set a blank index file and currently there is just a blank page showing on the site. it seems that the code i added back when i built the site (below) is important but maybe needs an update somehow?

these are the sections i tried removing (both separately and together) but i was either getting the blank page or a broken site. thanks!
if(!empty($blogpage_id) && get_post_meta($blogpage_id, ‘header’, true) != ‘no’)
{
echo avia_title(array(‘heading’=>’strong’, ‘title’ => $title, ‘link’ => $t_link, ‘subtitle’ => $t_sub));
}

do_action( ‘ava_after_main_title’ );
?>

<div class=’container_wrap container_wrap_first main_color <?php avia_layout_class( ‘main’ ); ?> <?php echo avia_blog_class_string(); ?>’>

<div class=’container template-blog ‘>

<main class=’content <?php avia_layout_class( ‘content’ ); ?> units’ <?php avia_markup_helper(array(‘context’ => ‘content’));?>>

<?php

$avia_config[‘blog_style’] = apply_filters(‘avf_blog_style’, avia_get_option(‘blog_style’,’multi-big’), ‘blog’);
if($avia_config[‘blog_style’] == ‘blog-grid’)
{
$atts = array(‘type’ => ‘grid’, ‘items’ => get_option(‘posts_per_page’), ‘columns’=> 3, ‘class’=>’avia-builder-el-no-sibling’, ‘paginate’=>’yes’);
$blog = new avia_post_slider($atts);
$blog->query_entries();
echo “<div class=’entry-content-wrapper’>”.$blog->html().”</div>”;
}
else
{
/* Run the loop to output the posts.
* If you want to overload this in a child theme then include a file
* called loop-index.php and that will be used instead.
*/

$more = 0;
get_template_part( ‘includes/loop’, ‘index’ );
}
?>

<!–end content–>
</main>

hi – i added the template to css but am a little confused on removing the index file. when i remove the child index, the website is just a blank white screen. the content is there when i use the enfold theme but none of the customizations are there? thanks