Free version doesnt save my workouts

Using app for a month, but every time I try to save my workouts, even with wifi connection, it says that it will update later, but nothing actually happens, fix the bug or add this feature to free version, otherwise the app is useless, as soon as you cant see your progression and decide whether to buy it or leave free version

Vrezh about Freeletics: Workouts & Fitness, v3.3.2