Thanks for reply.
I modified ovpn file to local ip address like this…
client
remote 192.168.1.2 1194
proto udp
then vpn connection completed but there is no internet connection. 
And I read
1.4. Browsing Internet after connecting to VPN
After connecting to the VPN, the client device will be able to browse the Internet without any further configuration. However, a pre-condition for this to work is that you need to have at least one Internet connected network interface which is part of the ‘External’ firewall zone. Use the networks configuration page to edit the firewall zone for the device’s network interfaces.
I checked network in system.
Do I have to make other connection that firewall zone is external?
And other setup manual page says…
If your OpenVPN client allows it, you can do this after importing the OpenVPN profile. Otherwise, you can edit the .ovpn profile file in a text editor and change the ‘remote’ line to contain the WAN IP address or hostname of your FreedomBox as follows(https://freedombox.local/plinth/help/manual/OpenVPN)
client
remote mybox.sds-ip.de 1194
proto udp
What is WAN IP address or hostname of your FreedomBox?