Invalid on disk structure

Over the past few months I’ve had more and more users reporting an error, usually when they try to save. The exact error is “This database cannot be read due to an invalid on disk structure”. Mail still goes out, however they say that it won’t save that message if they get the error.

I’m running 8.5.1 on my mail servers, however the users who’ve reported this problem are running Notes 6.5.5 with iNotes6.ntf as their mail file template. I can’t upgrade their clients yet because they are on Citrix and I’m waiting on some citrix infrastructure upgrades which will allow me to give those users 8.5.2 clients.

The way that I’ve been able to fix that in the begining when users first called about it and before I realise it had become an ongoing issue was by running the bellow comands in this order after the user closed down their client and their mail file was not being accessed

load nfixup mail\mailfile.nsf

load nupdall -r mail\mailfile.nsf

load ncompact -c mail\mailfile.nsf

This seams strange because I have some tasks that run automatically that should be doing the same thing.

The programs that run are:

Compact / -a / 1am / Sun

Compact / -B / 4am / Sun, Mon, Tue, Wed, Thu

Fixup / -J -F -L / 4am / Sat

Updall / -R -X / 7am / Sun

Any suggestions or help with this would be much apreciated as the only thing I’ve got left that I might try next week is to set up new programs that are staged to run a few hours appart that will replicate my manual steps 100%.