I've detected that the provided text is a software description, specifically about the Personal Backup application, and it includes information on various features, compatibility, and troubleshooting steps.

Based on the key you provided, 'Personal Backup 6.3.8.0 instal the new version for ios', I understand that you're looking to install an updated version of the Personal Backup app on your iOS device.

Here's a summary of the relevant information from the text:

* The latest version of Personal Backup is not available due to some issue, and the developer hasn't found a solution yet.

* You can try using an older version of the app or search for it in Uptodown's historical versions section, which includes all available versions of the app.

* If you need an older version of Personal Backup, you can download it from Uptodown.

As for installing the new version on your iOS device, I'd like to clarify a few things:

1. Since the latest version is not available, you may not be able to install the newest version directly.

2. You can try searching for older versions of Personal Backup in Uptodown or other app stores.

3. If you're looking for an alternative backup solution, I'd be happy to help you explore other options.

Please let me know if there's anything else I can assist you with!