Hi there! It sounds like you’re having a frustrating time with your slideshow showing the message "Photo not on phone anymore." I totally understand how that can be annoying. Let’s try to get this sorted out for you.

Here are some steps you can follow:

1. Check for Missing Photos:
- Open the Photos app on your Mac. Navigate to your Albums or Camera Roll to see if the photos that are showing the error are indeed missing or deleted.

2. Check iCloud Settings:
- If you use iCloud Photos, ensure that your photos are fully synced. Go to System Preferences > Apple ID > iCloud, and check if "Photos" is enabled. If it is, try toggling it off and back on, and see if that refreshes the images in your slideshow.

3. Update macOS:
- Sometimes, system updates can resolve glitches. Go to the Apple menu > About This Mac > Software Update. If there's an update available, install it and restart your Mac.

4. Rebuild Photo Library:
- If the issue persists, you could try rebuilding your photo library. Hold down the Option and Command keys while opening the Photos app, and this will prompt you to repair the library. Follow the on-screen instructions.

5. Check Slideshow Settings:
- Create a new slideshow and see if the same error appears. This can help identify if there’s a specific photo causing the issue. If it works fine with a new slideshow, the problem might be with the original slideshow settings.

6. Contact Support:
- If none of the above steps help, you may want to contact the Precious support team directly at [email protected] for further assistance.

Please give these steps a try, and let me know if you still see that error message! Are you satisfied with the solution I provided?