AC88U OpenVPN TLS handshake Error

I am not fluent in English so I used Google Translate.

Device, ac88u
Firmware, 384.19 (merlin)

unique,
All 8 ports are in use. (My device is port 1)
Wi-Fi also connects to 13 devices.

I changed the settings today and found that openvpn was not internally accessible and I tried several methods but still couldn't connect.
So I did a factory reset.
Tested on all iOS and Windows devices, but still can't connect.

Thanks in advance to those who answered.

Below is the log.

<Factory reset...

AC88U OpenVPN TLS handshake Error