Explanation: The host this request was performed on is blocked from being a database host. An administrator blocked the host to restrict which hosts are allowed to be EMM servers.
Verify that you specified the correct EMM server (the -h option on the command line). If you did not specify the database host, the command line defaults to the local host, while the console uses the currently administered host.
Contact the administrator in charge of this configuration and verify that the host was intentionally blocked from being a database host. If not, remove the NOT_DATABASE_HOST flag in the host's vm.conf file. To do so without having to stop and restart the daemons, use:
vmquery -h <hoostname> -remove_not_db_host.
To add this entry to a host without having to stop and restart the daemons, use: vmquery -h <hostname> -add_not_db_host.
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at webmaster@systemmanager.forsenergy.ru to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.