My FPGA on cRIO 9039 suddenly stopped generating intermediate filesthis morning with error 65218. The error description "A module in your project contains invalid module support files. Please contact the module vendor." was ever so helpful (which module??).
After some hunting for the offending file in my source code, it turned out to be either a failed experiment with xilinx ip core (which I deleted from source code) or some leftover compilation cache. Deleting all files and folders from C:\NIFPGA\compilation and C:\NIFPGA\iptemp solved my issue.
I'm leaving this solution in the forums in case somebody else runs into this message in the future.