System currently unavailable

There was an error connecting to the Internal (Derby) database. The system will attempt to reconnect in 30 seconds.

For full error details see: C:\Program Files\PaperCut MF\server\logs\server.log

(The page will automatically refresh every minute.)

DB Type:Derby
DB URL:jdbc:derby:derby
Initial error time:Tue Aug 20 17:41:28 NZST 2019
Last retry time:Wed Aug 21 08:10:38 NZST 2019
Next retry time:Wed Aug 21 08:11:08 NZST 2019
Error:Failed to start database 'derby' with class loader jdk.internal.loader.ClassLoaders$AppClassLoader@30946e09, see the next exception for details.
Another instance of Derby may have already booted the database C:\Program Files\PaperCut MF\server\data\internal\derby.