It has been determined that Odf's skin shader is incompatible with Poser 11 because it lacks the PrincipleBsdf node in the material room. I reconfigured the nodes so they utilize the PhysicalSurface root node for Superfly rendering. You should be able to render in Firefly also, but that is untested, atm. I made minor changes to some settings and introduced subsurface scatter for those interested in that feature. Please note, the spots nodes use in the shader are very sensitive to significant changes; test with caution. I did change settings on one node; on that particular node, change the spot size if you want noticeable skin markings. But increasing that value beyond the recommended 0.12 will create blotches, maybe something you desire for and illness. Shader below:

P11 render: