When I try to upgrade HP Data Protector from version 10.80 to 10.91, I encounter an error. I'm running the installer as an Administrator.

[NORMAL] Global options file has been upgraded.
[NORMAL] Notification file data has been upgraded.
[NORMAL_DETAIL] Service Data Protector Inet started.
[NORMAL_DETAIL] Service Data Protector CRS started.
[NORMAL_DETAIL] Service Data Protector Filter Listener Service started.
[NORMAL_DETAIL] Service Data Protector IDB started.
[NORMAL_DETAIL] Service Data Protector IDB connection pool started.
[NORMAL_DETAIL] Service Data Protector Application Server started.
[CRITICAL] Keycloak Database initialization failed.
[CRITICAL_DETAIL] Keycloak Database initialization failed with the output:
  Keycloak Database creation succeeded.
  Could not connect to the IDB.
 
[NORMAL_DETAIL] Service Data Protector Application Server restarted successfully.
[CRITICAL_DETAIL] Keycloak service initialization failed.
[NORMAL_DETAIL] Service Data Protector Application Server restarted successfully.
[WARNING] Reloading the Application Server configuration data timed out before completion.
[NORMAL_DETAIL] Service Data Protector Application Server restarted successfully.
[WARNING] Reloading the Application Server configuration data timed out before completion.
[CRITICAL_DETAIL] Failed to bind to Keycloak with script output - Failed to connect to the controller: The controller is not available at localhost:9999: java.net.ConnectException: WFLYPRT0053: Could not connect to remoting://localhost:9999. The connection failed: WFLYPRT0053: Could not connect to remoting://localhost:9999. The connection failed: Connection refused: no further information
  .
[CRITICAL_DETAIL] Binding Keycloak service failed.
all services are running except the application service