Fatal Error When uploading products to woocommerce

Hello, I am new to wordpress and having some troubles.
I am trying to upload products from a csv file to woocommerce.
Everytime I do it uploads some products and then stops and gives me this message:

Fatal error: Call to a member function set_stock_status() on a non-object in /home/content/p3pnexwpnas07_data02/84/2593484/html/wp-content/plugins/woocommerce/includes/wc-product-functions.php on line 46

I am importing them through the tradegecko add on.
Any help would be greatly appreciated!
Thanks