Hi! I understand you're seeing a black screen when trying to take a photo of a receipt in the ReceiptJar app on your iPhone. Let's work through this together to get it resolved.

First, could you please let me know if the app is allowing access to your camera? Sometimes if the permission is not granted, the camera screen stays black.

Here’s what you can check and try step-by-step on your iPhone with iOS version 18.7.8:

1. Check Camera Permissions
- Open your iPhone Settings app.
- Scroll down to find and tap on “ReceiptJar.”
- Make sure the toggle for “Camera” is turned ON to allow the app to use your camera.

2. Force Close and Reopen the App
- Swipe up from the bottom of the screen and pause to see your open apps.
- Find ReceiptJar and swipe it up off the screen to close it.
- Open the app again and try to take a photo.

3. Restart Your iPhone
- Sometimes, a quick restart can clear minor glitches. Press and hold the side button and either volume button until you see the power off slider. Slide to turn off, wait a moment, then turn it back on.
- Open ReceiptJar and try the camera again.

4. Update the App
- Visit the App Store and check if there is an update for ReceiptJar. Running the latest version can fix bugs.

If these first steps do not resolve the black screen:

5. Try Taking Photos with the Default Camera App
- Open your iPhone’s Camera app and take a photo of a receipt manually.
- Then, in ReceiptJar, use the option to upload or import photos from your gallery instead of taking a new photo within the app.

Give these a try, and let me know if the camera still shows a black screen or if any error messages appear. If it persists, we can dive deeper.

Are you satisfied with the solution I provided so far?