@JoaoTomima: Have you installed any unauthorised, third party ROMs or software onto your Galaxy S10? To check, head to Settings > About Phone > Status Information > Phone Status. Does it say 'Official' here? If it doesn't then the unofficial software is likely to be causing compatibility issues Samsung Health, leading to the error above.
If this isn't applicable, head to Settings > Battery and Device Care > Device Protection > Scan Now, to see if this flags any issues. I'd also recommend uninstalling any recently installed third party apps, to see if this helps.
@JoaoTomima: Try restarting your phone in Safe Mode, as this will disable all third party apps and help to determine if the issue is stemming from an external source. To proceed, press and hold the Power button until the 'Power off' prompt appears on the screen then release > Touch and hold Power off until the 'Safe mode' prompt appears then release > To confirm, tap Safe mode > With Safe Mode enabled, ensure Airplane Mode is turned off. Open Samsung Health, and check if the notification persists. If not, restart the phone as you would normally, and uninstall any third party apps that you have recently introduced to the phone. Let me know how you get on.
