Shadow Flickering

Just above and below each shelf in the pantry there is a bit of shading that flickers as you move the camera. It’s not the lightmap shading, not sure what that is? Some kind of shader, maybe post-process ambient occlusion? It’s the very light shadowing area on the back wall of the pantry just above and below each shelf. I don’t know what type of shader that is but it flickers when I move the camera around it and I don’t know how to stop it from flickering. I just want the shading to stop flickering on that back wall above and below each shelf.