Error with PHP 5.5

HI, there’s a PHP error with PHP 5.5, on line 181.

The error is because you assign the return of get_children() by reference.
I fixed using this code temporarly

$tmp_attachments = get_children( array(
	'post_type' => 'attachment',
	'post_mime_type' => 'image',
	'numberposts' => -1,
	'post_status' => null,
	'post_parent' => null, // any parent
	'output' => 'object',
) );

$attachments =& $tmp_attachments;

https://wordpress.org/plugins/ajax-thumbnail-rebuild/