broken next post code

single.php

<div class="up-next">
	<?php
		$post = get_previous_post();
		if( $post ) {
	?>
		<p>Read Next ... </p>
		<?php 
	  		$post = get_previous_post();
	  		$id = $post->ID;
	  
	 		 $image = get_the_post_thumbnail( $post->ID, 'bones-rect', array(

      			'title'	=>  $post->post_title
      	
      		));
	  	echo $image;
	?>
	<h4 class="h5">
	  <a href="<?=get_permalink(get_the_ID())?>"><? the_title() ?></a>
	</h4>
	<a href="<?=get_permalink(get_the_ID())?>" class="btn btn-danger">read more <i class="fa fa-angle-double-right"></i></a>
	<?php } ?>
	
	

</div>