Small scratching in Simucube 2 pro

Hello people.

I have had a small scrathing that i can feel in the wheel when its on, it is there when i am ingame or not ingame. When the base is off the scrathing is gone. Is this a normal thing or can it be fixed? I happens constant when i turn the wheel… and its so noticeble that its annoying. Its also a small humming noise but this dosent bother me.