Update took down website

After updating plugin, using WP 3.7.1, this is the message I get when going to the site:
Fatal error: Call to undefined function wc_clean() in /home2/coast/public_html/wp-content/plugins/search-by-sku-for-woocommerce/woocommerce-searchbysku.php on line 41

So, I have deactivated the plugin for now. This is really needed for there are 2,549 products on the site.

Is there a fix for this?

Thanks tons,

Tim

https://www.ads-software.com/plugins/search-by-sku-for-woocommerce/