Hi! I see you're getting the error "the device has rooted" when trying to open the Telebirr app on your phone. This message usually means the app has detected that your device's operating system has been modified (rooted), which some apps restrict for security reasons.

To help you better, may I know:

1. What model and make is your phone?
2. Are you certain if your phone has been rooted or modified in any way?
3. Have you installed apps like Magisk or SuperSU for rooting?
4. Have you already tried any fixes on your own?

This will help me guide you with the best steps to resolve the issue.

Meanwhile, here are some general approaches you can try to fix the "device is rooted" error:

1. Check for Root Status Accurately: Sometimes, apps incorrectly identify your phone as rooted. You can use apps like "Root Checker" from the Play Store to confirm if your phone is indeed rooted.

2. Hide Root with Magisk Manager (if rooted):
- If you have Magisk installed, open Magisk Manager app.
- Enable "Magisk Hide" for Telebirr app. This feature hides root from specific apps.
- Clear the Telebirr app cache (Settings > Apps > Telebirr > Storage > Clear Cache).
- Reopen Telebirr to see if it loads.

3. Clear App Data and Reinstall:
- Go to your phone’s Settings > Apps > Telebirr.
- Clear storage/data and cache.
- Uninstall and then reinstall the app from the official source.

4. Use a Non-Rooted Environment:
- If possible, use the Telebirr app on another non-rooted phone or device.
- Alternatively, you may try unrooting your phone using tools or your rooting app's unroot feature.

5. Developer Options and Settings:
Sometimes enabling/disabling certain developer options or resetting them may help.
Check for any USB debugging, OEM unlocking options, and try toggling them off.

If you have not rooted your device and are still facing this problem, the app might be giving a false positive. In such a case, ensuring your device's certification status in the Play Store and updating your firmware/operating system could help.

Let me know what your situation is regarding root status and if any of these steps sound feasible for you, so I can provide a more tailored solution!