How to fix this problem

Hi. i’m new in the ubuntu world. And i have one problem with VPN.

(Command)

$ sudo openvpn --config vpnbook-euro1-tcp443.ovpn
$ Usurname= vpnbook
$ password=*********

Sun Jan 21 00:12:05 2018 OpenVPN 2.4.3 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Jul 3 2017
Sun Jan 21 00:12:05 2018 library versions: OpenSSL 1.0.2g 1 Mar 2016, LZO 2.08
Enter Auth Username:
Enter Auth Password:
Failed to query password: Timer expired
Sun Jan 21 00:13:35 2018 ERROR: Failed retrieving username or password
Sun Jan 21 00:13:35 2018 Exiting due to fatal error
root@blood-SQ45S70S:/home/blood/Scaricati/VPNBook.com-OpenVPN-Euro1# sudo openvpn --config vpnbook-euro1-tcp443.ovpn
Sun Jan 21 00:14:40 2018 OpenVPN 2.4.3 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Jul 3 2017
Sun Jan 21 00:14:40 2018 library versions: OpenSSL 1.0.2g 1 Mar 2016, LZO 2.08
Enter Auth Username: vpnbook
Enter Auth Password: *******
Sun Jan 21 00:15:48 2018 WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.
Sun Jan 21 00:15:48 2018 NOTE: --fast-io is disabled since we are not using UDP
Sun Jan 21 00:15:48 2018 TCP/UDP: Preserving recently used remote address: [AF_INET]176.126.237.217:443
Sun Jan 21 00:15:48 2018 Socket Buffers: R=[87380->87380] S=[16384->16384]
Sun Jan 21 00:15:48 2018 Attempting to establish TCP connection with [AF_INET]176.126.237.217:443 [nonblock]
Sun Jan 21 00:15:49 2018 TCP connection established with [AF_INET]176.126.237.217:443
Sun Jan 21 00:15:49 2018 TCP_CLIENT link local: (not bound)
Sun Jan 21 00:15:49 2018 TCP_CLIENT link remote: [AF_INET]176.126.237.217:443
Sun Jan 21 00:15:52 2018 Connection reset, restarting [-1]
Sun Jan 21 00:15:52 2018 SIGUSR1[soft,connection-reset] received, process restarting
Sun Jan 21 00:15:52 2018 Restart pause, 5 second(s)
Sun Jan 21 00:15:57 2018 WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.

I’ve moved this to the https://community.ubuntu.com/c/support-help-requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the https://community.ubuntu.com/t/finding-help/712 page.