Hello Megan,
We understand that you are getting an issue with the application. To better help you, make sure that the application is updated by going to the Store and check for updates. If the phone's date and time settings are correct, you can try restarting your device.
If the issue persists, we suggest getting in touch with the developer of the app by sending an email. You can contact them by going to Store > Microsoft Solitaire Collection > Under Additional information, go to Developer.
Let us know if you have any questions.