Hello @LucienDuchateau, welcome to the community!
If you want to output something to the webpage, you are going to need to use app.get() and send some text or html file because right now you haven’t set up any way to see output on the / route.
@SharkCoding Thanks a lot! The html and css are now working and I am no longer getting that error. For some reason the ws isn’t being recognized on startup, however I believe the express part of this works. Thanks!