The UI language and backend language of ZStack are independent of each other. The default backend language is Chinese. You can run the following commands in sequence to switch the language:
[root@localhost ~]# zstack-ctl configure locale=en_US #Switch the language. Note that en_US indicates English, and zh_CN indicates Chinese.
[root@localhost ~]# zstack-ctl restart_node #Restart the management node for the configuration to take effect.