Mmm, that's the only mod component that uses the Marshal function.
Please try to remove everything from the Mods folder; if it now works, then we know that it is one of the other mod components that is causing the error.
If instead it still doesn't work, please try to restore the original Scripts.rxdata file.
If it still doesn't work even now, then probably your savegame is corrupted and I can't really help you... but the folks over in Troubleshooting might be able to.