If you used the Chines Simplified extensions， please remove it which will bind the extension vscode server work correctly 

I connected to the remote host through SSH, and the shell and file browsing functioned normally, but all installed plugins stopped working. After a long and tedious process of reinstalling, resetting settings.json, and reinstalling older versions, I finally tried uninstalling the local Chinese plugins, and everything worked again.

I'm not sure what caused this, but it may be related to the Chinese encoding. The plugins also worked fine after SSHing to the server before, so this machine might be old. Anyone experiencing the same issue can try deleting the local Chinese plugins. I've searched extensively online but haven't found a similar solution, so I'm sharing this blog post for your reference.