Hi there! It looks like you’re getting a message saying "Charstar is temporarily offline. Subscribe via our iPhone app." This can happen for a few reasons, such as maintenance, server issues, or network connectivity problems.

To help you out, let’s go through a few steps to troubleshoot:

1. Check Your Internet Connection: Ensure that you’re connected to the internet. Sometimes, a weak connection can cause issues with apps.

2. Restart the App: Close the Charstar app completely and then reopen it. This can help refresh any temporary issues it might be having.

3. Clear App Cache: If you're still having trouble, try clearing the app cache. You can do this by going to your device settings, navigating to Apps, finding Charstar, and then selecting "Clear Cache."

4. Check for App Updates: Ensure that your Charstar app is updated to the latest version. You can do this from the App Store.

5. Network Settings Reset: If none of the above works, you may want to reset your network settings. Keep in mind that this will erase your saved Wi-Fi networks and passwords.

6. Check Server Status: Sometimes the issue might be with Charstar's servers. If that’s the case, you may need to wait until they are back online. You can check social media or support forums for updates on their status.

If you still experience issues after trying these steps, please let me know, and we can explore further options or contact support if necessary. Are you satisfied with the solution I provided?