PaperOffice updates are released to publish new functions and changes, but also to adapt to your Windows system.
Therefore, it is very important to adapt ALL user accounts registered in the database to the current, published PaperOffice release in the case of multiple users of a PaperOffice network.
New releases include new components, changes and database entries, which means that if one of your user accounts wants to use a new or existing function that is still accessing old components, it can lead to a massive error / slowdown in your entire database.
The activity / inactivity at this time of your user account does not matter.