Server error: Cannot close file “Service.cnf”.

Hi guys, I am posting here an issue on Microsoft Office Frontpage, I always encounter an error every time I will close a file, see below the error message.
Server error: Cannot close file “Service.cnf”.
As I look on the error message above, its very simple but annoying in the since that it will pop up every time I will close a file, my first approach to this error is to remove Microsoft Office Frontpage and install again, it did not give any help, I also scanned my computer for some virus, no virus was found, the only thing I did not do is reformat my computer, please share some ideas on this issue, thanks a lot.
