This command is the one failing;
Code:
*** Running as zimbra user: /opt/zimbra/bin/zmprov in wiki@inc21.com 'ScrkWsgFEK' /opt/zimbra/wi
ki/Template Template
Have a look in the admin UI accounts page, does this account exist:
wiki@inc21.com and is there another account (with a different name) already set as the global wiki account? If that's the case then change the name of the account in that command to match the name of the global wiki account.