I am getting an error from line 173

[drytech1]

Strict Standards: Non-static method base::do_skin() should not be called statically, assuming $this from incompatible context in /home/xxxx/public_html/sources/misc/skin.php on line 173

Here is line 173:
$TMPL['featured_member'] = base::do_skin('featured_member');

Any ideas? I am new to using this site, so I apologize if I did not include enough info. The script is a Topsites script.

My server uses PHP Version 5.4.45