If you are encountering the "User not found" message while trying to see someone's profile on Deco My Tree, it may be due to a server issue, or the user may not have a valid profile. Here's a step-by-step guide to help you troubleshoot the problem:

1. Verify User ID:
- Confirm that you have entered the correct user ID. If there's a typo or if the user has changed their ID, you won't be able to find them.

2. Check Server Status:
- Sometimes, the Deco My Tree server may face outages or issues. To check the current status of the server, you can refer to forums or community updates regarding Deco My Tree for any reported downtime or maintenance - learn more.

3. Restart the App:
- Close the Deco My Tree app and restart it. This can resolve temporary glitches.

4. Re-install the App:
- If the problem persists, consider uninstalling and then reinstalling the Deco My Tree app. Make sure to back up any important data before doing so - learn more.

5. Try a Different Network:
- If you suspect that your internet connection might be unstable, try connecting through a different Wi-Fi network or using mobile data.

6. Contact Support:
- If none of the above solutions work, reach out to Deco My Tree's customer support for further assistance. They can provide information on whether there are known issues with user visibility - learn more.

By following these steps, you should be able to determine whether the issue is due to a server problem or another cause.