Please report this as a bug to
support@wolflair.com so that we can get more detailed information about what's going on, and get some of the files, so that we can inspect them, to see what's wrong with them.
The first thing I would try for this is to temporarily suspend any antivirus you have running, and see if you still get the errors then - it's possible that the antivirus program is interfering with the save or load process.