It is perfectly safe to continue to flipkart.com via this page. This page is only meant to remind the webmaster that they need to update their website/App.
You are using a LinkMyDeals Smartlink for a store that you are not currently subscribed for. So please log into your LinkMyDeals account to resubscribe to flipkart.com, or purchase a SmartLink Add-On, or remove Smartlink to flipkart.com from your website/App.