VPN not reconnect with Cisco AnyConnect Secure Mobility Client

I try to connect other server by vpn with Cisco AnyConnect. For the first time, it connects. But if I try to reconnect, it shows:

Okay, but connection has been established for the first time. I perform this in terminal:

v-chernyshov@v-chernyshov:~$ nslookup connect.####.com
Server: 127.0.0.53
Address: 127.0.0.53#53
** server can't find connect.okmarket.ru: SERVFAIL

And I don't understand, what is 127.0.0.53, it not looks like correct server IP.

Please, tell me, what to do.

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