Hello, I am a graduate student attempting to run evaluate the depletion of a ceramic film attached to the moderator-side of the fuel clad. I am having some issues with my MCNP syntax/code and I was wondering if one could assist. My input file is attached. I am not looking for someone to fully analyze the issue, just wanted to see if anyone notices anything wrong. I am getting a burnup of 0.000E+00 for the first step, then N/A for the remaining.