Problem with VPN client in Linux (Cannot ioctl TUNSETIFF)

Hi guys!

We have a user that can't connect in VPN on Linux, when He try connect this log of error apperas:

Fri Oct 25 14:09:57 2019 SENT CONTROL [SophosApplianceCertificate]: 'PUSH_REQUEST' (status=1)
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 SENT CONTROL [SophosApplianceCertificate]: 'PUSH_REQUEST' (status=1)
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 Key [AF_INET]x.x.x.x:8443 [0] not initialized (yet), dropping packet.
Fri Oct 25 14:10:02 2019 PUSH: Received control message: 'PUSH_REPLY,route-gateway 10.81.234.5,ping 45,ping-restart 180,redirect-gateway def1,topology subnet,route remote_host 255.255.255.255 net_gateway,dhcp-option DNS 192.168.10.1,dhcp-option DOMAIN domain.local,ifconfig 10.81.234.8 255.255.255.0'
Fri Oct 25 14:10:02 2019 OPTIONS IMPORT: timers and/or timeouts modified
Fri Oct 25 14:10:02 2019 OPTIONS IMPORT: --ifconfig/up options modified
Fri Oct 25 14:10:02 2019 OPTIONS IMPORT: route options modified
Fri Oct 25 14:10:02 2019 OPTIONS IMPORT: route-related options modified
Fri Oct 25 14:10:02 2019 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified
Fri Oct 25 14:10:02 2019 Outgoing Data Channel: Cipher 'AES-128-CBC' initialized with 128 bit key
Fri Oct 25 14:10:02 2019 Outgoing Data Channel: Using 256 bit message hash 'SHA256' for HMAC authentication
Fri Oct 25 14:10:02 2019 Incoming Data Channel: Cipher 'AES-128-CBC' initialized with 128 bit key
Fri Oct 25 14:10:02 2019 Incoming Data Channel: Using 256 bit message hash 'SHA256' for HMAC authentication
Fri Oct 25 14:10:02 2019 ROUTE_GATEWAY 192.168.0.1/255.255.255.0 IFACE=enp10s0 HWADDR=60:a4:4c:62:f4:25
Fri Oct 25 14:10:02 2019 ERROR: Cannot ioctl TUNSETIFF tun: Operation not permitted (errno=1)
Fri Oct 25 14:10:02 2019 Exiting due to fatal error

When we try connect in Windows works... And others users can't connect in this Linux too...