Plex media manager problem

The World is Flat Nederlands - Dutch
1

If I open plex media maneger it is looking strange. Please help.

2

Shut down plex media server

Terminate any residual plex processes showing in task manager

Delete 

%localappdata%\Plex Media Server\Plug-ins\WebClient.bundle

Restart Plex Media Server

Wait 10 minutes

Retry 

localhost:32400/web