Idk what exactly failed. Homepage is empty

Ok so I installed User Frosting without any Error (I didnt saw an Error in the Console). I think it Installed successfully but the Homepage just shows this:

The homepage is empty:

Console shows this:

Sorry for external link but I can only put 1 Image into this post.

Anything I can check, maybe a command or something?

It looks like you are running in production mode and haven’t built the assets. Have a look at