Error an Article Page

Please, help
I have activated sharethis and I have just an error on my product page (for example.):
Warning: current() [function.current]: Passed variable is not an array or object in …/wp-content/plugins/woocommerce/classes/integrations/sharethis/class-wc-sharethis.php on line 90

http://wordpress.org/plugins/woocommerce/

[ Please do not bump, that’s not permitted here. ]