PaperCut install can get very upset if it is trying to write info to the internal database and there is no space on the disk, the same can be said if there is activity in the database and the power to the machine is removed in a rude and abrupt fashion. PaperCut has a great article on <a href="https://www.papercut.com/support/resources/manuals/ng-mf/common/topics/ext-db-upsizing.html">database size</a>, have a read over a cuppa and get the calculator out and at the same time remember hard drives are cheap