Upgraded to Enfold 2.9.1 and $headerS variable is gone

Hi,

I had this line in my child theme:
if(strpos($headerS,’social_header’) !== false)

which now throws the warning
strpos() expects parameter 1 to be string, array given in childtheme/header.php

Can you point me in the direction of some documentation that might help me? I still want this same logic to show the social header.

Thanks!