SICSIFAAR error

root@rock64:/etc/openvpn/client/openvpn# openvpn --config TunnelBear\ Mexico.ovpn
Tue Nov 28 17:31:47 2017 WARNING: --keysize is DEPRECATED and will be removed in OpenVPN 2.6
Tue Nov 28 17:31:47 2017 WARNING: file 'PrivateKey.key' is group or others accessible
Tue Nov 28 17:31:47 2017 OpenVPN 2.4.4 aarch64-unknown-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Nov 28 2017
Tue Nov 28 17:31:47 2017 library versions: OpenSSL 1.0.1t  3 May 2016, LZO 2.08
Enter Auth Username:lukasz.XXXX@XXXX.com
Enter Auth Password:
Tue Nov 28 17:31:57 2017 WARNING: --ns-cert-type is DEPRECATED.  Use --remote-cert-tls instead.
Tue Nov 28 17:31:57 2017 TCP/UDP: Preserving recently used remote address: [AF_INET]201.131.127.215:443
Tue Nov 28 17:31:57 2017 UDP link local: (not bound)
Tue Nov 28 17:31:57 2017 UDP link remote: [AF_INET]201.131.127.215:443
Tue Nov 28 17:31:57 2017 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
Tue Nov 28 17:32:00 2017 [8471/server] Peer Connection Initiated with [AF_INET]201.131.127.215:443
Tue Nov 28 17:32:02 2017 Option 'explicit-exit-notify' in [PUSH-OPTIONS]:4 is ignored by previous <connection> blocks
Tue Nov 28 17:32:02 2017 Note: option tun-ipv6 is ignored because modern operating systems do not need special IPv6 tun handling anymore.
Tue Nov 28 17:32:02 2017 TUN/TAP device tun0 opened
Tue Nov 28 17:32:02 2017 do_ifconfig, tt->did_ifconfig_ipv6_setup=1
Tue Nov 28 17:32:02 2017 /sbin/ifconfig tun0 172.18.12.78 pointopoint 172.18.12.77 mtu 1500
Tue Nov 28 17:32:02 2017 /sbin/ifconfig tun0 add fde4:8dba:82e2::1012/64
SIOCSIFADDR: Permission denied
Tue Nov 28 17:32:02 2017 Linux ifconfig inet6 failed: external program exited with error status: 1
Tue Nov 28 17:32:02 2017 Exiting due to fatal error