R-navi funktioniert nicht

The following functions will be enabled when you register the plan. - This subscription is valid for one month from the subscription start date. - Payment will be charged to iTunes account at confirmation of purchase. - Accounts will be charged for renewal within 24-hours prior to the end of the current period. - The subscriptions automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - To turn off auto-renewal for these purchases, select Manage App Subscriptions in your iTunes Account settings and select the subscription you want to modify.  To turn off auto-renewal for these purchases, select Manage App Subscriptions in your iTunes Account settings and select the subscription you want to modify.  Ouen navi (R-navi) is an application that predicts the participant's current position and his/her finish or waypoint time from the record data of the running competition.  This application can be available at all races offered by RUNNET "Ouen navi" service in JAPANESE domestic races.  Let's display yourself and your friends who participated in the event at the same time and enjoy the realism of the event day.  This app gives visual prediction where your family and friends are, so you can use it as a race cheering tool.  But we offer Premium Plan so as to maximize your fun.  Replay mode will be available.  You can use basic functions for free.  Please note that the subscription will not stop even if you uninstall this app. * Please select "About smartphone application" as a question genre.