How to fixed this warning

I am getting a warning every post on i creates and it shows at the top of each post.

Warning: Invalid argument supplied for foreach() in /home/truitt66/public_html/shoppershops.net/wp-content/plugins/affiliate-easel-for-amazon/affiliate-easel.php on line 790

Here is line 788-794

function getSearchpage(){
$easel_atts=get_option(‘widget_easelwidget’);
foreach($easel_atts as $att){
if(is_array($att) && array_key_exists(‘searchpage’, $att)){$searchpage=$att[‘searchpage’];} //may be multiple, last one is fine.
}
return $searchpage;
}

Can someone please help me fixed this. Thanks in advance