Hi there! I understand that you're able to sign in to Skylight on your computer, but the app on your mobile device isn't letting you sign in. I'd love to help you get this sorted out.

To start, could you tell me if you’re entering the same email and password on your mobile app as you do on your computer? Sometimes, even a small typo can cause login issues on the app.

Meanwhile, here are some steps to try on your mobile device:

1. Double-check the email address and password you’re entering—make sure they exactly match what you use on your computer.
2. Close the Skylight app completely and reopen it, then try logging in again.
3. Clear the app’s cache or data if possible, or you could uninstall and reinstall the Skylight app. This often resolves glitches.
4. Ensure your mobile device is connected to a stable internet connection.

If you’ve already tried these, let me know which ones so I can provide more advanced options, like checking device linkage or account settings.

Are you using the Skylight app on Windows (since your OS is Windows 10) or is this a different mobile device? That detail can help me tailor the guidance better.