When I removed /opt/zimbra/wiki/Template/Logo.gif, command "zmprov in
wiki@zimbra.example.com password /opt/zimbra/wiki/Template Template" succeeded.
Now, document function is starting to work.
However, I cannot upload a picture to wiki and think this might related with the above error.
In zimbra.log, I found some messages as below and also think these messages could be related with this issue.
2006-09-29 22:08:16,125 INFO [Timer-0] [] FileUploadServlet - 7 pending file uploads
2006-09-29 22:10:16,136 INFO [Timer-0] [] FileUploadServlet - Removed 2 expired file uploads; 5 pending file uploads