@Sezer-Yiğit
https://forum.suunto.com/topic/2977/suunto-app-service-status/1
App doesn’t responding or connecting, This was a server issue during a couple à hours.
All should be OK now with official and / or beta versions.
For long activities not syncing, it is a known bug in App, and this issue is solved for certain thanks to a fixed 4.1 version shared by @Dimitrios-Kanellopoulos.