Woocommerce 2.0.2

Hi, your job is incredible. But I have a problem with old version of woo 2.0.2 I cant get it work. Settings is not saving… Is it possible to make for this version too ? Because I cant update woo of much custom codes…

Do I need to uncomment this code ?:

add_action(‘woocommerce_update_options_settings_tab_woof’, array($this, ‘update_settings’), 50);

https://ww.wp.xz.cn/plugins/woocommerce-products-filter/