[Xymon] Yellow n Red alerts

Hi All,

I could not see the history of red and yellow alerts ,I am able to view green.

When I click on red/yellow alerts..it throws below error.Please help to sort this issue.Tried removing and and re-installing hobbit rpm but no luck.

Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, you at yourhost.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Apache/1.3.41 Server at 127.0.0.1 Port 80

Regards, Mahesh