Get a reliable VPN like NordVPN, ExpressVPN, Surfshark, and Private Internet Access (PIA). In most cases, the error occurs due to a non-compatible VPN with Talkatone.  2. Go to your phone’s settings and clear Talkatone’s app cache and app data. 3. Launch the VPN and connect to a Talkatone-supported region.  4. Open Talkatone and enjoy making calls and sending text messages.