With there also being excessive scratching, I would suggest having a knowledgeable rabbit vet check your rabbit right away. Lack of normal ear movement and excessive scratching, can be an indication or ear mites or an ear infection.
I'm not certain from the photo, but it looks like that part of the inside bottom near the ear canal, might look puffy. If it is, your rabbit could have an aural hematoma, which could be the cause of the irritation, or it could have occurred secondary to one of the other ear issues. Either way, it's best to get it checked out.
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