[Ovirt-devel] How to fix "500 internal server error"?

[Jia Dong <jdong redhat com>]

Hey guys,
   I got a problem.
   I deleted "default" hardware pool several days before. And I had to 
reinstall ovirt. I got a prompt "500 internal server error" today. After 
refreshing,I can not login to UI. It prompt "We're sorry,but something 
went wrong." I think it may be caused by trying to rename the "default" 
hardware pool.
  How can I fix this? Must I reinstall it?
  Did this action just destroy UI or virtualization configuration ?
  Some other peoples also met this problem. Would ovirt buddies give a 
feature about resetting?  :-)

Thanks,
Nikki