Hi there! I understand that you're experiencing a blank screen issue with your Signia app. Let’s work together to resolve this.

First, could you please let me know if you’ve tried any troubleshooting steps so far, such as restarting your device or the app itself?

In the meantime, here are a few steps you can try:

1. Restart Your iPhone: Sometimes a simple restart can clear temporary glitches. Just turn off your iPhone and then turn it back on.

2. Check Your Internet Connection: Ensure that your device is connected to the internet, as the app requires an active connection to load properly.

3. Reinstall the App: If restarting doesn't help, uninstall the Signia app from your iPhone and then reinstall it. This process can remove any corrupted files or settings that might be causing the blank screen. Once you've reinstalled it, open the app and see if the problem persists.

4. Compatibility Check: Make sure your iPhone is compatible with the version of the Signia app you’re using.

Give these steps a try and let me know how it goes! If the issue continues, we may need to explore further troubleshooting options.