API error output

[yun_yuankang]

When I log in to the SMS using the command "mgmt login ipv4-address xxxx user xxx password xxx" from the firewall, the error "MGMT9000 code: generic_server_initializing" appears

Any suggestions?

[Yuri_Slobodyany]

What is the 

api status

 command on the management CLi (expert mode) is saying ?

[yun_yuankang]

The attachment content is the api status，The same error will still appear after the management device restarts...

[_Val_]

Check your API server is up, and GUI clients are properly defined. As @Yuri_Slobodyany  suggested, "api status" command is a good start.