Error code on homepage

I’m getting this error message on each page of my published website:

Warning : count(): Parameter must be an array or an object that implements Countable in /homepages/41/d704115501/htdocs/app704117342/wp-content/themes/jevelin/inc/helpers.php on line 496


I would like to recommend please contact theme Author and let them know How to Contact your purchased theme Author (you can use comments to post your query in theme comments page), theme author will be happy to assist you.