Unhandled Error!

Trying to get property of non-object

Document blog:post
Document type CMS partial
Line 6
Exception class Cms_ExecutionException

Code Highlight

<div class="container">
	<div class="row">
		<div class="blog-border blogposts clearfix" style="position:relative;">
			<div class="col-md-6">
				<div class="images">
					<?php if($post->video){ ?>
						<div class="img"><?php echo $post->video; ?></div>
					<?php }else{ ?>
						<img src="<?php echo $post->featuredimages[0]->getThumbnailPath(460, 'auto', false); ?>" class="img-responsive" alt="" />
					<?php } ?>
				</div>
			</div>
			<div class="col-md-6 pull-right">
# Document Type
2 blog:post CMS partial
1 The Blog Post CMS page