Yeah, this has been a problem for a while now. To fix this, you will need this image . Save it as 空1 and put it into the panorama folder. There is also the same problem with going into Space from Tapir-San's place, so for that you will need this image . Save it as 宇宙 and again put it in the panorama folder.
I believe having ANY image named the right thing and being the right size will work. These pictures here I actually just copied and renamed from the Yume Nikki panorama folder.