Right-click the last two and select Remove. They are not needed because you are already monitoring the folder above.
Now under 'File Types' heading, make sure the 'Exclude:' box has -
Click the Apply button.
Now right-click on the "LR-Classical" folder, and select Rescan Now. Click OK and it should update the library. (It might take a few minutes)
Edit: Afterwards, reselect items again from the Library / Artist tab (on the left) to update the playlist.
Re: "ON AIR" - You cannot do anything about modifying the skin (Eole). It works the way it works. So forget about that. Doing the above steps should hopefully remove these problem files.
Honestly if I had $1 for every time someone needed help with the Eole skin, I'd be millionaire by now.