Security notification from wordfence.

Hi, is it okey to receive this type of message from wordfence? I reinstalled plugin and it all stays same. I checked changed files, it seems to be an update of plugin. Is it just small update or I have to worry about malware on my site? Here is the message.

Medium Severity Problems:

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/languages/yith-woocommerce-product-add-ons.pot

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/includes/class-yit-assets.php

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/includes/class-yit-plugin-panel-woocommerce.php

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/init.php

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/languages/yith-plugin-fw-el.po

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/languages/yith-plugin-fw-es_ES.po

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/languages/yith-plugin-fw-it_IT.po

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/languages/yith-plugin-fw-nl_NL.po

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/languages/yith-plugin-fw-ru_RU.po

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/languages/yith-plugin-fw-zh_CN.po

* Modified plugin file: wp-content/plugins/yith-woocommerce-product-add-ons/plugin-fw/languages/yith-plugin-fw.pot