Went for a run this week and used my Forerunner 235 as usual. Synced with my iphone but then received the message as shown in the photo. Since then, I have not been able to access any activity data for the last 4 weeks. Same message. I've uninstalled the app and reinstalled it as well as doing a soft reset, but it's still not letting me see any data. I've since downloaded Garmin Express on my pc and can see all the runs there except for the most recent one, although the steps from that run have been registered. I don't know what to try next, it's really annoying. Has this happened to anyone else? Any suggestions of what to try next please? Thanks.