How can I change IP of APIC-EM

Installed APIC-EM 1.2.want to change the IP address of this server. What is the procedure for this 

I hope I can do this without re-installation

•  You will have to run the config_wizard from the cli of the APIC-EM cluster.

 Steps:

1. SSH using grapevine user to APIC-EM

2. Run ./Config_wizard

Getting the following error while running config_wizard as the grapevine user (Running SSH to APIC-EM as grapevine user). Also tried running the command as root, but the command is not found. Not via VM console (tried that too, but did not work, even that command did not run via console)

 Traceback (most recent call last):

 File "/opt/cisco/grapevine/bin/grapevine_config_wizard_lxc", line 9, in <module>                                      load_entry_point('grapevine-config-wizard==1.2.0.11539.dev555-g6906b29', 'console_scripts', 'grapevine_config_wizard_lxc')()

File "/opt/cisco/grapevine/local/lib/python2.7/site-packages/grapevine_config_wizard/appliance/ConfigWizard.py", line 95, in main_func

context = GrapevineContext(responses)

                           File "/opt/cisco/grapevine/local/lib/python2.7/site-packages/grapevine_config_wizard/appliance/GrapevineContext.py", line 335, in __init__

                                     self._init_curses()

File "/opt/cisco/grapevine/local/lib/python2.7/site-packages/grapevine_config_wizard/appliance/GrapevineContext.py", line 886, in _init_curses

curses.init_pair(Colors.WHITE_ON_BLUE, curses.COLOR_WHITE, curses.COLOR_BLUE)

                 _curses.error: init_pair() returned ERR

                                                        (grapevine)

[Mon Jul 04 07:02:13 UTC] grapevine@10.128.*.* (grapevine-root-1) ~

As you are planning to change the host ip address for APIC-EM  you need to first ensure that the DNS and NTP servers are reachable before you run the configuration wizard and whenever a Cisco APIC-EM host reboots in the deployment. Also If the external IP address changes for your controller for any reason, then you need to re-import a new certificate with the changed or new IP address.

Please refer the deployment guide for more details.

http://www.cisco.com/c/en/us/td/docs/cloud-systems-management/application-policy-infrastructure-controller-enterprise-module/1-2-x/deploy-guide/b_apic_em_deploy_guide_v_1-2-x.html

Found out the above error occurred only on SecureCRT. While using Putty everything worked normally.