Can't SSH beaglebone board

Hi there.

I haven’t been using beaglebone board for several weeks and now I can’t access it with SSH (via USB):

Varvaras-MacBook-Pro:~ var_vara$ ssh -vvvvv root@192.168.7.2

OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011

debug1: Reading configuration data /etc/ssh_config

debug1: /etc/ssh_config line 20: Applying options for *

debug1: /etc/ssh_config line 102: Applying options for *

debug2: ssh_connect: needpriv 0

debug1: Connecting to 192.168.7.2 [192.168.7.2] port 22.

debug1: Connection established.

debug1: identity file /Users/var_vara/.ssh/id_rsa type -1

debug1: identity file /Users/var_vara/.ssh/id_rsa-cert type -1

debug1: identity file /Users/var_vara/.ssh/id_dsa type -1

debug1: identity file /Users/var_vara/.ssh/id_dsa-cert type -1

debug1: Enabling compatibility mode for protocol 2.0

debug1: Local version string SSH-2.0-OpenSSH_6.2

And that’s it.

How can I solve this problem?