zplyva

I am in hostinger

When i want to add a skin, after installing the skin, i get this message (photo below) What do i do. I treid adding (/home/u937587418/domains/accessairvirtual.org/public_html//lib/skins/Clarity-Crew-Center-1.1/header.php) on line 231 in the quotations just as instructed, bit it just made it worse. What is the key to activating the skin?