Please follow the below-mentioned steps in order to resolve the issue:-
1- Check the proper internet connectivity in your device via settings>connection>mobile network>Network mode is set to LTE/3G. You can also check by wifi connection too.
2- Settings> app>3 dots/more option>show system app>search for particular app>Clear cache>force stop.
3- You can also check by updating the application via app store/Google play store.
4- If issue still exists then once check by uninstalling and reinstalling the required application.
5- Else, you need to once contact the concerned app developer.
Team Samsung Members