I'm sorry to read about that! I'm not sure if this issue is still happening for you, but I would suggest the following:
Allow your watch to set the date and time automatically. You can find this setting from your watch's menu: Settings > System > Time > Set Time.
Follow the steps from this link to establish a fresh connection to your Connect app and phone's Settings. Make sure you follow the step to power cycle your device: Remove and Add a Device From the Garmin Connect App
