Gallery Plugin Returning Error on Webpage

Warning: strpos(): Empty needle in /home/hang10z/public_html/wp-content/plugins/envira-gallery/includes/global/common.php on line 656

I am getting this error shown on my webpage, when I go to this file in common.php on line 656 this is the code:

// Don’t resize images that don’t belong to this site’s URL
if ( strpos( $url, get_bloginfo( ‘url’ ) ) === false ) {
return $url;

Why is this error posting on my webpage?

Is there a workaround for to remove this error?

Can I delete this code from common.php?

Any help would be greatly appreciated.

PS – Since I do not have the login information for whomever purchased this plugin, there is ABSOLUTELY no way to get in contact with their support team believe me I have tried.