I have a CCM cluster 4.2(3) - the cluster was working fine but since some days ago when I try to open the administration page https://<ipaddress>/ccmadmin, I get a HTTP 500 - Internal server error and the page is not displayed. The IIS, the World Wide Web Publishing Service, and the other Cisco Call Manager Services are running. Other Cisco CCM pages like the DNA or the BARS pages are working fine. I restarted the server but it didn't work.
What can I do to restore the administration of the cluster?
Yhank you all