Lotus 123 files continue to get corrupt

Hello Experts, I have a client that uses Lotus 123 version n9.8. We have to restore at least two files a week from backup because they continually get corrupt. From what the users tell me they think this happens when they are saving the files.

I just installed a desktop/server to share the files throughout the network thinking this may be a problem however, the users have told me that this happened when the files were local to their system.

Any ideas of how to prevent this and what the exact problem may be?

Lotus 123 files continue to get corrupt