Can not connect gvm-tools using SSH to remote Greenbone Enterprise TRIAL

The environment I am working in is the following:

Firstly I have a ubuntu machine(gvm-tools) through which I need to access GVM Appliance using gvm-tools.

I am able to connect GVM appliance through ssh from my ubuntu machine but when I connect GVM appliance using gvm-tools using following command:

gvm-cli ssh --x “<get_version/>”
but get the following error: ERROR:gvmtools.cli:Remote closed the connection

(I have updated the gvm config file according to my environment)
DEFAULT_GVM_PORT = 9390
DEFAULT_UNIX_SOCKET_PATH = “/var/run/gvm/gvmd.sock”
DEFAULT_SSH_PORT = 22
DEFAULT_SSH_USERNAME = “my_username”
DEFAULT_SSH_PASSWORD = “my_pass”
DEFAULT_HOSTNAME = ‘192.168.100.100’
DEFAULT_KNOWN_HOSTS_FILE = “.ssh/known_hosts”
MAX_SSH_DATA_LENGTH = 4095

Kindly address my issue. Thank you

regards

shah