Hello,
The error message is likely related to the fact that your device act as the server, and since there is no remote IP, you get this error message. The service, however, should work and this error is not an issue. Perhaps you can share more logs from the IPSec logs that are available from the WebUI?
Also, you can access the device via CLI/SSH (username ‘root’) and execute the following command to check IPSec status:
ipsec statusall
Also, could you please share your IPSec configurations from your android phone?
Please, before sharing any information on a public forum here, make sure you hide any sensitive information that may appear in the logs or configurations, such as public IP addresses, passwords, etc.
Kind Regards,