Can't make Accelerad simulations run for some reason

Hi everyone,

I am stuck on using Accelerad with LadybugTools in Grasshopper. After copying and replacing the Accelerad files into the Radiance bin folder, the simulation fails. I tried running a very simple CummulativeRadiation and AnnualDaylight with just one surface and two sensors. Here is the end of log for the AnnualDaylight simulation. Can anyone point me to a solution? (Radiance v 5.4a, LBT 1.7.15)

Thanks in advance for anything.