I deleted the wiki account, then:
[zimbra@mailhost ~]$ /opt/zimbra/bin/zmprov in
wiki@inc21.com 'ScrkWsgFEK' /opt/zimbra/wiki/Template Template
Initializing folders
Creating folder Template
Initializing...
Creating wiki page _Template in folder Template
Creating wiki page _PathItemTemplate in folder Template
Creating wiki page _TemplateStyles_unused in folder Template
Creating wiki page _TemplateStyles in folder Template
Creating wiki page _TocBodyTemplate in folder Template
Creating file document Logo.gif in folder Template
Cannot import Wiki documents from /opt/zimbra/wiki/Template
com.zimbra.cs.service.wiki.WikiServiceException: error: import
at com.zimbra.cs.service.wiki.WikiServiceException.ER ROR(WikiServiceException.java:60)
at com.zimbra.cs.wiki.WikiUtil$WikiSoapUtil.startImpo rt(WikiUtil.java:411)
at com.zimbra.cs.account.ProvUtil.doImport(ProvUtil.j ava:1257)
at com.zimbra.cs.account.ProvUtil.initNotebook(ProvUt il.java:1209)
at com.zimbra.cs.account.ProvUtil.execute(ProvUtil.ja va:536)
at com.zimbra.cs.account.ProvUtil.main(ProvUtil.java: 1455)
Caused by: com.zimbra.soap.SoapFaultException: system failure: java.lang.NullPointerException
at com.zimbra.soap.Soap12Protocol.soapFault(Soap12Pro tocol.java:102)
at com.zimbra.soap.SoapTransport.extractBodyElement(S oapTransport.java:215)
at com.zimbra.soap.SoapTransport.parseSoapResponse(So apTransport.java:191)
at com.zimbra.soap.SoapHttpTransport.invoke(SoapHttpT ransport.java:214)
at com.zimbra.soap.SoapTransport.invoke(SoapTransport .java:231)
at com.zimbra.cs.zclient.ZMailbox.invoke(ZMailbox.jav a:347)
at com.zimbra.cs.zclient.ZMailbox.createDocument(ZMai lbox.java:2368)
at com.zimbra.cs.wiki.WikiUtil$WikiSoapUtil.createIte m(WikiUtil.java:350)
at com.zimbra.cs.wiki.WikiUtil$WikiSoapUtil.populateF olders(WikiUtil.java:372)
at com.zimbra.cs.wiki.WikiUtil$WikiSoapUtil.startImpo rt(WikiUtil.java:408)
... 4 more